Demonstrators participate in a protest against abortion and a bill that seeks to teach comprehensive sexual education in schools, in Bogota, Colombia November 23, 2022. REUTERS/Luisa Gonzalez 

A demonstrator holds a painting with the image of the Virgin Mary during a protest against abortion and a bill that seeks to provide comprehensive sexual education in schools in Bogota, Colombia November 23, 2022. REUTERS/Luisa Gonzalez REFILE - QUALITY REPEAT 

Demonstrators hold a sign that reads "Do not mess with my children" during a protest against abortion and a bill that seeks to provide comprehensive sexual education in schools in Bogota, Colombia November 23, 2022. REUTERS/Luisa Gonzalez 

Demonstrators participate in a protest against abortion and a bill that seeks to teach comprehensive sexual education in schools, in Bogota, Colombia November 23, 2022. REUTERS/Luisa Gonzalez 

Demonstrators participate in a protest against abortion and a bill that seeks to teach comprehensive sexual education in schools, in Bogota, Colombia November 23, 2022. REUTERS/Luisa Gonzalez REFILE - QUALITY REPEAT 

Demonstrators participate in a protest against abortion and a bill that seeks to teach comprehensive sexual education in schools, in Bogota, Colombia November 23, 2022. REUTERS/Luisa Gonzalez 

Demonstrators participate in a protest against abortion and a bill that seeks to teach comprehensive sexual education in schools, in Bogota, Colombia November 23, 2022. REUTERS/Luisa Gonzalez 

Demonstrators participate in a protest against abortion and a bill that seeks to teach comprehensive sexual education in schools, in Bogota, Colombia November 23, 2022. REUTERS/Luisa Gonzalez 

Demonstrators participate in a protest against abortion and a bill that seeks to teach comprehensive sexual education in schools, in Bogota, Colombia November 23, 2022. REUTERS/Luisa Gonzalez 

An English dictionary is placed on a table during graduation exams in English at the sports hall of Gesamtschule Windeck (comprehensive school Windeck) during the spread of COVID-19 pandemic in Windeck-Herchen, Germany April 23, 2021. REUTERS/Wolfgang Rattay 

A teacher oversees students during graduation exams in English at the sports hall of Gesamtschule Windeck (comprehensive school Windeck) during the spread of COVID-19 pandemic in Windeck-Herchen, Germany April 23, 2021. REUTERS/Wolfgang Rattay 

A teacher oversees students during graduation exams in English at the sports hall of Gesamtschule Windeck (comprehensive school Windeck) during the spread of COVID-19 pandemic in Windeck-Herchen, Germany April 23, 2021. REUTERS/Wolfgang Rattay 

Students attend graduation exams in English at the sports hall of Gesamtschule Windeck (comprehensive school Windeck) during the spread of COVID-19 pandemic in Windeck-Herchen, Germany April 23, 2021. REUTERS/Wolfgang Rattay 

Students attend graduation exams in English at the sports hall of Gesamtschule Windeck (comprehensive school Windeck) during the spread of COVID-19 pandemic in Windeck-Herchen, Germany April 23, 2021. REUTERS/Wolfgang Rattay 

A teacher oversees students during graduation exams in English at the sports hall of Gesamtschule Windeck (comprehensive school Windeck) during the spread of COVID-19 pandemic in Windeck-Herchen, Germany April 23, 2021. REUTERS/Wolfgang Rattay 

Students attend graduation exams in English at the sports hall of Gesamtschule Windeck (comprehensive school Windeck) during the spread of COVID-19 pandemic in Windeck-Herchen, Germany April 23, 2021. REUTERS/Wolfgang Rattay 

Students attend graduation exams in English at the sports hall of Gesamtschule Windeck (comprehensive school Windeck) during the spread of COVID-19 pandemic in Windeck-Herchen, Germany April 23, 2021. REUTERS/Wolfgang Rattay 

Police cars are parked in front of the Kaethe Kollwitz comprehensive school in Luenen, Germany, January 23, 2018, where police investigated reports that one student attacked another. REUTERS/Leon Kuegeler 

Police in front of the Kaethe Kollwitz comprehensive school in Luenen, Germany, January 23, 2018, where police investigated reports that one student attacked another. REUTERS/Leon Kuegeler 

Officials in front of the Kaethe Kollwitz comprehensive school in Luenen, Germany, January 23, 2018, where police investigated reports that one student attacked another. REUTERS/Leon Kuegeler 

A police car is parked in front of the Kaethe Kollwitz comprehensive school in Luenen, Germany, January 23, 2018, where police investigated reports that one student attacked another. REUTERS/Leon Kuegeler 

Police in front of the Kaethe Kollwitz comprehensive school in Luenen, Germany, January 23, 2018, where police investigated reports that one student attacked another. REUTERS/Leon Kuegeler 

A police car is parked in front of the Kaethe Kollwitz comprehensive school in Luenen, Germany, January 23, 2018, where police investigated reports that one student attacked another. REUTERS/Leon Kuegeler 

Fencing equipment is left in a training room at the Shichahai sports school in Beijing, China, May 17, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Students practice table tennis at the Shichahai sports school in Beijing, China, May 17, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Students practice badminton at the Shichahai sports school in Beijing, China, March 31, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Students at the Shichahai sports school attend a class in Beijing, China, May 18, 2016. The poster reads "Learn from Olympic champions". China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Stickers in the shape of Chinese flags are placed on an achievement board on the wall of a dormitory at the Shichahai sports school in Beijing, China, May 17, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

A student puts her helmet on during fencing training at the Shichahai sports school in Beijing, China, May 17, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Students practice fencing at the Shichahai sports school in Beijing, China, May 17, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Female students listen to their teacher in a boxing gym at the Shichahai sports school in Beijing, China, May 17, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Foreign visitors watch students practice taekwondo at the Shichahai sports school in Beijing, China, March 31, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Students practice taekwondo at the Shichahai sports school in Beijing, China, May 17, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Students practice taekwondo at the Shichahai sports school in Beijing, China, March 31, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY 

Students practice taekwondo at the Shichahai sports school in Beijing, China, May 17, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

A student practices wushu at the Shichahai sports school in Beijing, China, May 17, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY 

Students at the Shichahai sports school pass a poster featuring the school's former students who became Olympic champions, before their classes in Beijing, China, May 18, 2016. The poster reads "Learn from Olympic champions". China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Students at the Shichahai sports school line up after their table tennis training in Beijing, China, May 17, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. Some schools have closed and others are adjusting the way they work. At Beijing's Shichahai, adorned with posters extolling the feats of ex-students turned Olympic champions, vice-head Zhang Jing said the school offered "comprehensive development" and equipped athletes with the skills needed for life after sport. REUTERS/Damir Sagolj SEARCH "CHINA OLYMPIC SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

University students Ivan Timofeenko (R) and Pavel Pankin demonstrate the effect produced by liquid nitrogen in front of students during a demonstration at a local grammar school in Russia's Siberian city of Krasnoyarsk, November 21, 2012. Timofeenko and Pankin, students from the Siberian Federal University, specialize in applied mathematics and physics and have conducted experiments aimed at the popularization of the exact sciences, for the pupils of the 7th grade at the "Universe" grammar school. Demonstrative and spectacular lessons, dedicated to chemical, physical, chemical-biological and physical-chemical experiments, are expected to be held at 10 comprehensive schools of Krasnoyarsk in order to select most talented and enthusiastic schoolchildren for facultative training at the university starting from February 2013, according to organizers. REUTERS/Ilya Naymushin (RUSSIA - Tags: EDUCATION SCIENCE TECHNOLOGY SOCIETY) 

Pupils watch the effect produced by liquid nitrogen during a demonstration at a local grammar school in Russia's Siberian city of Krasnoyarsk, November 21, 2012. Ivan Timofeenko and Pavel Pankin, students from the Siberian Federal University, specialize in applied mathematics and physics and have conducted experiments aimed at the popularization of the exact sciences, for the pupils of the 7th grade at the "Universe" grammar school. Demonstrative and spectacular lessons, dedicated to chemical, physical, chemical-biological and physical-chemical experiments, are expected to be held at 10 comprehensive schools of Krasnoyarsk in order to select most talented and enthusiastic schoolchildren for facultative training at the university starting from February 2013, according to organizers. REUTERS/Ilya Naymushin (RUSSIA - Tags: EDUCATION SCIENCE TECHNOLOGY SOCIETY) 

Pupils freeze roses in a bowl of liquid nitrogen during a demonstration at a local grammar school in Russia's Siberian city of Krasnoyarsk, November 21, 2012. Ivan Timofeenko and Pavel Pankin, students from the Siberian Federal University, specialize in applied mathematics and physics and have conducted experiments aimed at the popularization of the exact sciences, for the pupils of the 7th grade at the "Universe" grammar school. Demonstrative and spectacular lessons, dedicated to chemical, physical, chemical-biological and physical-chemical experiments, are expected to be held at 10 comprehensive schools of Krasnoyarsk in order to select most talented and enthusiastic schoolchildren for facultative training at the university starting from February 2013, according to organizers. REUTERS/Ilya Naymushin (RUSSIA - Tags: EDUCATION SCIENCE TECHNOLOGY SOCIETY) 

Students touch liquid nitrogen and watch the effect produced during a demonstration lesson at a local grammar school in Russia's Siberian city of Krasnoyarsk, November 21, 2012. Ivan Timofeenko and Pavel Pankin, students from the Siberian Federal University, specialize in applied mathematics and physics and have conducted experiments aimed at the popularization of the exact sciences, for the pupils of the 7th grade at the "Universe" grammar school. Demonstrative and spectacular lessons, dedicated to chemical, physical, chemical-biological and physical-chemical experiments, are expected to be held at 10 comprehensive schools of Krasnoyarsk in order to select most talented and enthusiastic schoolchildren for facultative training at the university starting from February 2013, according to organizers. REUTERS/Ilya Naymushin (RUSSIA - Tags: EDUCATION SCIENCE TECHNOLOGY SOCIETY) 

Students Ivan Timofeenko (L) and Pavel Pankin hold a flask to show the effect produced by the ignition of chrome oxide in Ammonium steams during a demonstration at a local grammar school in Russia's Siberian city of Krasnoyarsk, November 21, 2012. Timofeenko and Pankin, students from the Siberian Federal University, specialize in applied mathematics and physics and have conducted experiments aimed at the popularization of the exact sciences, for the pupils of the 7th grade at the "Universe" grammar school. Demonstrative and spectacular lessons, dedicated to chemical, physical, chemical-biological and physical-chemical experiments, are expected to be held at 10 comprehensive schools of Krasnoyarsk in order to select most talented and enthusiastic schoolchildren for facultative training at the university starting from February 2013, according to organizers. REUTERS/Ilya Naymushin (RUSSIA - Tags: EDUCATION SCIENCE TECHNOLOGY SOCIETY) 

Students watch a burning model of a volcano, made of Ammonium Bichromate powder and set alight, during a demonstration at a local grammar school in Russia's Siberian city of Krasnoyarsk, November 21, 2012. Ivan Timofeenko and Pavel Pankin, students from the Siberian Federal University, specialize in applied mathematics and physics and have conducted experiments aimed at the popularization of the exact sciences, for the pupils of the 7th grade at the "Universe" grammar school. Demonstrative and spectacular lessons, dedicated to chemical, physical, chemical-biological and physical-chemical experiments, are expected to be held at 10 comprehensive schools of Krasnoyarsk in order to select most talented and enthusiastic schoolchildren for facultative training at the university starting from February 2013, according to organizers. REUTERS/Ilya Naymushin (RUSSIA - Tags: EDUCATION SCIENCE TECHNOLOGY SOCIETY) 

Students watch a burning model of a volcano, made of Ammonium Bichromate powder and set alight, during a demonstration at a local grammar school in Russia's Siberian city of Krasnoyarsk, November 21, 2012. Ivan Timofeenko and Pavel Pankin, students from the Siberian Federal University, specialize in applied mathematics and physics and have conducted experiments aimed at the popularization of the exact sciences, for the pupils of the 7th grade at the "Universe" grammar school. Demonstrative and spectacular lessons, dedicated to chemical, physical, chemical-biological and physical-chemical experiments, are expected to be held at 10 comprehensive schools of Krasnoyarsk in order to select most talented and enthusiastic schoolchildren for facultative training at the university starting from February 2013, according to organizers. REUTERS/Ilya Naymushin (RUSSIA - Tags: EDUCATION SCIENCE TECHNOLOGY SOCIETY) 

Students watch the effect produced by the ignition of paraffin heated up to 400 degrees Celsius (752 degrees Fahrenheit) after contact with water during a demonstration at a local grammar school in Russia's Siberian city of Krasnoyarsk, November 21, 2012. Ivan Timofeenko and Pavel Pankin, students from the Siberian Federal University, specialize in applied mathematics and physics and have conducted experiments aimed at the popularization of the exact sciences, for the pupils of the 7th grade at the "Universe" grammar school. Demonstrative and spectacular lessons, dedicated to chemical, physical, chemical-biological and physical-chemical experiments, are expected to be held at 10 comprehensive schools of Krasnoyarsk in order to select most talented and enthusiastic schoolchildren for facultative training at the university starting from February 2013, according to organizers. REUTERS/Ilya Naymushin (RUSSIA - Tags: EDUCATION SCIENCE TECHNOLOGY SOCIETY) 

Students look at a flask while watching the effect produced by the ignition of chrome oxide in Ammonium steams during a demonstration at a local grammar school in Russia's Siberian city of Krasnoyarsk, November 21, 2012. Ivan Timofeenko and Pavel Pankin, students from the Siberian Federal University, specialize in applied mathematics and physics and have conducted experiments aimed at the popularization of the exact sciences, for the pupils of the 7th grade at the "Universe" grammar school. Demonstrative and spectacular lessons, dedicated to chemical, physical, chemical-biological and physical-chemical experiments, are expected to be held at 10 comprehensive schools of Krasnoyarsk in order to select most talented and enthusiastic schoolchildren for facultative training at the university starting from February 2013, according to organizers. REUTERS/Ilya Naymushin (RUSSIA - Tags: EDUCATION SCIENCE TECHNOLOGY SOCIETY) 

A combination photo shows a student freezing a rose in a bowl with nitrogen liquid and breaking it up into pieces on a classmate's hand during a demonstration at a local grammar school in Russia's Siberian city of Krasnoyarsk, November 21, 2012. Ivan Timofeenko and Pavel Pankin, students from the Siberian Federal University, specialize in applied mathematics and physics and have conducted experiments aimed at the popularization of the exact sciences, for the pupils of the 7th grade at the "Universe" grammar school. Demonstrative and spectacular lessons, dedicated to chemical, physical, chemical-biological and physical-chemical experiments, are expected to be held at 10 comprehensive schools of Krasnoyarsk in order to select most talented and enthusiastic schoolchildren for facultative training at the university starting from February 2013, according to organizers. REUTERS/Ilya Naymushin (RUSSIA - Tags: EDUCATION SCIENCE TECHNOLOGY SOCIETY) 

Russian billionaire and presidential candidate Mikhail Prokhorov (C, back) poses for a picture with pupils during a basketball training session as he visits educational comprehensive school number 59 in Moscow February 16, 2012. Russians will vote in a presidential election on March 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS BUSINESS EDUCATION SPORT) 

Russian billionaire and presidential candidate Mikhail Prokhorov attends a basketball training session as he visits educational comprehensive school number 59 in Moscow February 16, 2012. Russians will vote in a presidential election on March 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS BUSINESS EDUCATION SPORT) 

Russian billionaire and presidential candidate Mikhail Prokhorov attends a basketball training session as he visits educational comprehensive school number 59 in Moscow February 16, 2012. Russians will vote in a presidential election on March 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS BUSINESS EDUCATION SPORT) 

Russian billionaire and presidential candidate Mikhail Prokhorov (R) attends a basketball training session as he visits educational comprehensive school number 59 in Moscow February 16, 2012. Russians will vote in a presidential election on March 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS BUSINESS EDUCATION SPORT) 

Russian billionaire and presidential candidate Mikhail Prokhorov (C, back) talks to pupils during a basketball training session as he visits an educational comprehensive school number 59 in Moscow February 16, 2012. Russians will vote in a presidential election on March 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS BUSINESS EDUCATION SPORT) 

Russian billionaire and presidential candidate Mikhail Prokhorov (L) attends a basketball training session as he visits educational comprehensive school number 59 in Moscow February 16, 2012. Russians will vote in a presidential election on March 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS BUSINESS EDUCATION SPORT) 

Russian billionaire and presidential candidate Mikhail Prokhorov attends a basketball training session as he visits educational comprehensive school number 59 in Moscow February 16, 2012. Russians will vote in a presidential election on March 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS BUSINESS EDUCATION SPORT) 

Russian billionaire and presidential candidate Mikhail Prokhorov (C) attends a basketball training session as he visits educational comprehensive school number 59 in Moscow February 16, 2012. Russians will vote in a presidential election on March 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS BUSINESS EDUCATION SPORT) 

Filipino-American Miami Heat head coach Erik Spoelstra gives instructions to students during a basketball clinic at Torres high school in Tondo city, metro Manila, August 4, 2011. Spoelstra is again in the Philippines as part of the NBA FIT Philippines 2011, the league's global comprehensive health and wellness program.REUTERS/Romeo Ranoco (PHILIPPINES - Tags: SPORT BASEBALL) 

Filipino-American Miami Heat head coach Erik Spoelstra gives instructions to students during a basketball clinic at Torres high school in Tondo city, metro Manila, August 4, 2011. Spoelstra is again in the Philippines as part of the NBA FIT Philippines 2011, the league's global comprehensive health and wellness program. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: SPORT BASEBALL) 

A cadet of General Alexei Yermolov Cossack School, a comprehensive military institution named after the 19th century Russian general, has a meal as he takes part in a drill in a snow-filled forest in Russia's southern city of Stavropol February 15, 2011. REUTERS/Eduard Korniyenko (RUSSIA - Tags: ENVIRONMENT MILITARY EDUCATION FOOD) 

Cadets of General Alexei Yermolov Cossack School, a comprehensive military institution named after the 19th century Russian general, have a meal as they take part in a drill in a snow-filled forest in Russia's southern city of Stavropol February 15, 2011. REUTERS/Eduard Korniyenko (RUSSIA - Tags: ENVIRONMENT MILITARY EDUCATION FOOD)