A migrant boy, part of a caravan traveling en route to the United States, plays on the slide of a playground while he stays with fellows migrants in a sport complex that is currently used as a temporary shelter, in Matias Romero Avendano, Mexico November 8, 2018. REUTERS/Carlos Garcia Rawlins

A migrant, part of a caravan traveling en route to the United States, sleeps on a slide at a playground in Tapanatepec, Mexico November 6, 2018. REUTERS/Carlos Garcia Rawlins

A slide is seen in a burnt playground following a wildfire at the village of Mati, near Athens, Greece, July 25, 2018. REUTERS/Alkis Konstantinidis

Children enjoy the slide at a playground during the New Year's Day celebrations at the Millennium park in Abuja, Nigeria January 1, 2018. REUTERS/Afolabi Sotunde

A girl slides down a ramp into the lake in Wadi el-Rayan Fayoum, Egypt, November 18, 2016. Picture taken November 18, 2016. REUTERS/Mohamed Abd El Ghany TPX IMAGES OF THE DAY

A man slides down a ramp into the lake in Wadi el-Rayan Fayoum, Egypt, November 18, 2016. Picture taken November 18, 2016. REUTERS/Mohamed Abd El Ghany

A girl slides down a ramp into the lake in Wadi el-Rayan Fayoum, Egypt, November 18, 2016. Picture taken November 18, 2016. REUTERS/Mohamed Abd El Ghany

A man slides down a ramp into the lake in Wadi el-Rayan Fayoum, Egypt, November 18, 2016. Picture taken November 18, 2016. REUTERS/Mohamed Abd El Ghany

Ala Alwan, WHO's regional director for the eastern Mediterranean, visits a refugee camp in Ameriyat Falluja, south of Falluja, Iraq, June 16, 2016. REUTERS/Ahmed Saad

Ala Alwan, WHO's regional director for the eastern Mediterranean, visits a refugee camp in Ameriyat Falluja, south of Falluja, Iraq, June 16, 2016. REUTERS/Ahmed Saad

Children play in a park close to their improvised classrooms, which are part of state school Monsenor Marco Tulio Ramirez Roa, in La Fria, Venezuela, June 1, 2016. REUTERS/Carlos Garcia Rawlins SEARCH "VENEZUELA SCHOOL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES

Children play on a slide as a rainbow forms overhead at a makeshift camp for refugees and migrants at the Greek-Macedonian border near the village of Idomeni, Greece, May 22, 2016. REUTERS/Kostas Tsironis TPX IMAGES OF THE DAY

Children play on a slide at a makeshift camp for refugees and migrants at the Greek-Macedonian border near the village of Idomeni, Greece, April 15, 2016. REUTERS/Stoyan Nenov

Children play on a slide at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 28, 2016. REUTERS/Marko Djurica

A woman helps her daughter as she plays on a slide in the old city of Algiers Al Casbah, Algeria December 3, 2015. The Algiers Casbah is a UNESCO World heritage site that includes the Sidi Ramdane mosque and former fortress, 10 centuries old. Decay from the passing years, as well as earthquake damage in 2003, leads some to consider a move to modern apartments with financial backing from the government. Others refuse to leave a neighbourhood they have called home for decades. Picture taken December 3, 2015. REUTERS/Zohra Bensemra

Students play during their break inside Hosam Kamel school in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria October 28, 2015. Hosam Kamel school, that was bombed and partially destroyed, started today the new school year after restoration work was done, activists said. REUTERS/Khalil Ashawi TPX IMAGES OF THE DAY

A Syrian man sleeps at a playground in the resort town of Bodrum, Turkey, September 4, 2015. Turkish authorities stopped 57 people trying to cross to the Greek island of Kos on Thursday night, as migrants trying to reach Europe remained undeterred by the drowning of two toddlers this week on the same route. Images of the tiny body of 3-year old Aylan Kurdi washed up on a beach near the Turkish resort of Bodrum sparked a global outpouring of sympathy, and shocked European governments into renewed focus on tackling the migrant crisis. But the death of Kurdi - along with his 5-year old brother Galip, his mother and nine others - has done little to deter migrants, many refugees from war in the Middle East, from taking to small boats for the 4 km (2 mile) nocturnal crossing to Kos from Bodrum. Coastguards halted three boats carrying 57 Syrians, Afghans and Pakistanis late on Thursday, impounding the vessels and taking the passengers back to Turkey, where they spent the night sleeping under blankets in the yard of the coastguard building. REUTERS/Murad Sezer

A Syrian man sleeps at a playground in the resort town of Bodrum, Turkey, September 4, 2015. Turkish authorities stopped 57 people trying to cross to the Greek island of Kos on Thursday night, as migrants trying to reach Europe remained undeterred by the drowning of two toddlers this week on the same route. Images of the tiny body of 3-year old Aylan Kurdi washed up on a beach near the Turkish resort of Bodrum sparked a global outpouring of sympathy, and shocked European governments into renewed focus on tackling the migrant crisis. But the death of Kurdi - along with his 5-year old brother Galip, his mother and nine others - has done little to deter migrants, many refugees from war in the Middle East, from taking to small boats for the 4 km (2 mile) nocturnal crossing to Kos from Bodrum. Coastguards halted three boats carrying 57 Syrians, Afghans and Pakistanis late on Thursday, impounding the vessels and taking the passengers back to Turkey, where they spent the night sleeping under blankets in the yard of the coastguard building. REUTERS/Murad Sezer

People slide down a 1,082 feet (330 metre) long inflatable water slide in Hong Kong, China August 22, 2015. REUTERS/Tyrone Siu

People slide down a 1,082 feet (330 metre) long inflatable water slide in Hong Kong, China August 22, 2015. REUTERS/Tyrone Siu

People slide down a 1,082 feet (330 metre) long inflatable water slide in Hong Kong, China August 22, 2015. REUTERS/Tyrone Siu

Children slide down a water slide on a hot summer day in the western Austrian village of Ellmau, August 12, 2015. REUTERS/Dominic Ebenbichler

Children slide down a water slide on a hot summer day in the western Austrian village of Ellmau, August 12, 2015. REUTERS/Dominic Ebenbichler

Children slide down a water slide on a hot summer day in the western Austrian village of Ellmau, August 12, 2015. REUTERS/Dominic Ebenbichler

A person slides down a huge water pipe at a park on a hot summer day in Brussels, Belgium, August 7, 2015. REUTERS/Francois Lenoir

People slide down a huge water pipe at a park on a hot summer day in Brussels, Belgium, August 7, 2015. REUTERS/Francois Lenoir

A person slides down a huge water pipe at a park on a hot summer day in Brussels, Belgium, August 7, 2015. REUTERS/Francois Lenoir

A visitor is silhouetted as she slides down a huge water pipe at a public swimming pool on a hot sunny day in Vienna, Austria, July 22, 2015. Temperatures in Austria's capital Vienna rose up to 37 degrees Celsius (98 Fahrenheit), but Austria's Central Institute for Meteorology and Geodynamics predicts a possible record temerature of 38 degrees Celsius (100 Fahrenheit) in the next days. REUTERS/Leonhard Foeger

Visitors are silhouetted as they slide down a huge water pipe at a public swimming pool on a hot sunny day in Vienna, Austria, July 22, 2015. Temperatures in Austria's capital Vienna rose up to 37 degrees Celsius (98 Fahrenheit), but Austria's Central Institute for Meteorology and Geodynamics predicts a possible record temerature of 38 degrees Celsius (100 Fahrenheit) in the next days. REUTERS/Leonhard Foeger

A visitor is silhouetted as she slides down a huge water pipe at a public swimming pool on a hot sunny day in Vienna, Austria, July 22, 2015. Temperatures in Austria's capital Vienna rose up to 37 degrees Celsius (98 Fahrenheit), but Austria's Central Institute for Meteorology and Geodynamics predicts a possible record temerature of 38 degrees Celsius (100 Fahrenheit) in the next days. REUTERS/Leonhard Foeger

A visitor is silhouetted as she slides down a huge water pipe at a public swimming pool on a hot sunny day in Vienna, Austria, July 22, 2015. Temperatures in Austria's capital Vienna rose up to 37 degrees Celsius (98 Fahrenheit), but Austria's Central Institute for Meteorology and Geodynamics predicts a possible record temerature of 38 degrees Celsius (100 Fahrenheit) in the next days. REUTERS/Leonhard Foeger

Visitors are silhouetted as they slide down a huge water pipe at a public swimming pool on a hot sunny day in Vienna, Austria, July 22, 2015. Temperatures in Austria's capital Vienna rose up to 37 degrees Celsius (98 Fahrenheit), but Austria's Central Institute for Meteorology and Geodynamics predicts a possible record temerature of 38 degrees Celsius (100 Fahrenheit) in the next days. REUTERS/Leonhard Foeger

A visitor is silhouetted as she slides down a huge water pipe at a public swimming pool on a hot sunny day in Vienna, Austria, July 22, 2015. Temperatures in Austria's capital Vienna rose up to 37 degrees Celsius (98 Fahrenheit), but Austria's Central Institute for Meteorology and Geodynamics predicts a possible record temerature of 38 degrees Celsius (100 Fahrenheit) in the next days. REUTERS/Leonhard Foeger

A dog runs on a slide at the Dog Resort in Sao Paulo, March 25, 2015. City dwellers in the South American concrete jungle of Sao Paulo are increasingly living on their own in high rise apartment blocks, turning to pets for company rather than traditional family cohabitation. Care centres, such as this, who look after the animals during the working hours of the day are becoming increasingly popular. REUTERS/Nacho Doce

A man takes a rest near a playground slide, at a park in a business district of Tokyo, March 17, 2015. The Bank of Japan maintained its massive stimulus program on Tuesday and signaled its conviction that a steady economic recovery will help achieve its ambitious price target without immediate, additional monetary easing. REUTERS/Yuya Shino (JAPAN - Tags: BUSINESS SOCIETY)

People ride slides on ice sculptures illuminated by coloured lights during the opening day of the 31st Harbin International Ice and Snow Festival in the northern city of Harbin, Heilongjiang province, January 5, 2015. The annual Ice and Snow Festival, organized by China National Tourism Administration and local governments, kicked off on Monday in Harbin, one of the coldest cities in China.
REUTERS/Kim Kyung-Hoon (CHINA - Tags: ANNIVERSARY TRAVEL SOCIETY TPX IMAGES OF THE DAY)

Students play on a slide on the first day of the new school term at a primary school in Baghdad October 22, 2014. Children went back to school at the start of the new term on Wednesday amid increased security in Baghdad, as conflict rages in the country. REUTERS/Ahmed Saad (IRAQ - Tags - Tags: EDUCATION)

Egyptians crowd a slide at a public beach during a hot day nearing the end of summer vacation for schools, in the Mediterranean city of Alexandria, 230 km (143 miles) north of Cairo September 5, 2014. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: ENVIRONMENT SOCIETY)

Children climb on a slide at a playground in a Jewish settlement in the Etzion settlement bloc, near Bethlehem August 31, 2014. Israel announced on Sunday a land appropriation in the occupied West Bank that an anti-settlement group termed the biggest in 30 years and a Palestinian official said would cause only more friction after the Gaza war. Some 400 hectares (988 acres) in the Etzion settlement bloc near Bethlehem were declared "state land, on the instructions of the political echelon" by the military-run Civil Administration. Construction of a major settlement at the location, known as "Gevaot", has been mooted by Israel since 2000. Last year, the government invited bids for the building of 1,000 housing units at the site. REUTERS/Ronen Zvulun (WEST BANK - Tags: POLITICS SOCIETY)

Mia Moscoso plays on a slide at Riverside Park, which is located on land that had been filled with abandoned mills and decrepit buildings, in the Olneyville neighborhood of Providence, Rhode Island March 20, 2014. Public pressure, federal funding, data-driven policing and greater community organization are all prompting more experimentation around the U.S. with new ways to get at the roots of urban poverty and crime. REUTERS/Lucas Jackson (UNITED STATES - Tags: SOCIETY REAL ESTATE)

People ride a giant slide at the Wisconsin State Fair in West Allis, Wisconsin, August 9, 2014. The fair started over 150 years ago and mixes agricultural exhibits with amusements rides. Picture taken August 9, 2014. REUTERS/Jim Young (UNITED STATES - Tags: SOCIETY)

Holidaymakers rest at a beach in the resort town of Bodrum July 14, 2014. As families splash in the sea and lounge in the sun, thoughts of politics and civic duty are a world away for most Turks holidaying on the Aegean and Mediterranean coasts. Only the most committed opponents of Prime Minister Tayyip Erdogan leave the beach to queue in a sweltering council building nearby to register to vote in next month's presidential election to prevent what they see as the country's slide towards authoritarianism. Thousands of people with holiday homes in the summer playgrounds of Bodrum, Cesme and Marmaris that are popular with opposition sympathisers have applied for a change of address to enable them to vote while away. Picture taken July 14, 2014. REUTERS/Tuncay Dersinlioglu//KODA Collective (TURKEY - Tags: POLITICS TRAVEL SOCIETY ELECTIONS)

A woman walks past by a statue of modern Turkey's founder Mustafa Kemal Ataturk in the resort town of Bodrum July 14, 2014. As families splash in the sea and lounge in the sun, thoughts of politics and civic duty are a world away for most Turks holidaying on the Aegean and Mediterranean coasts. Only the most committed opponents of Prime Minister Tayyip Erdogan leave the beach to queue in a sweltering council building nearby to register to vote in next month's presidential election to prevent what they see as the country's slide towards authoritarianism. Thousands of people with holiday homes in the summer playgrounds of Bodrum, Cesme and Marmaris that are popular with opposition sympathisers have applied for a change of address to enable them to vote while away. Picture taken July 14, 2014. REUTERS/Tuncay Dersinlioglu//KODA Collective (TURKEY - Tags: POLITICS SOCIETY TRAVEL ELECTIONS)

A girl wearing a faeces-shaped hat prepares to slide down into a five-metre (16.4-ft) toilet at an exhibition titled "Toilet !? Human Waste and Earth's Future" at the Miraikan National Museum of Emerging Science and Innovation in Tokyo July 3, 2014. The exhibition, which opened at the museum on Wednesday, explores the world of toilets, with the main exhibit centring around a massive toilet into which visitors are allowed to slide to simulate the journey of human waste matter into the sewers. The exhibit also includes five zones that range from showing exactly what one's excrement is made of to how different types of toilets are used around the world, and even a possible space toilet that could be used to grow plants. The exhibit is open until October 5 and costs 1,200 yen ($11.80) to visit. REUTERS/Issei Kato (JAPAN - Tags: SOCIETY HEALTH ENVIRONMENT TPX IMAGES OF THE DAY)

Children play at a playground in Macau May 1, 2014. REUTERS/Tyrone Siu (CHINA - Tags: SOCIETY)

Children play at a playground in the shanty town of Ticlio Chico, Villa Maria del Triunfo, on the outskirts of Lima, March 13, 2014. REUTERS/Mariana Bazo (PERU - Tags: SOCIETY)

A Free Syrian Army fighter plays on a slide in the Jabal al-Akrad area in Syria's northwestern Latakia province February 24, 2014. REUTERS/Alaa Khweled (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)

Child victims of super typhoon Haiyan play at a school playground at Bayse town, Eastern Samar province, central Philippines December 22, 2013. Super typhoon Haiyan reduced almost everything in its path to rubble when it swept ashore in the central Philippines on November 8, killing at least 6,069 people, leaving 1,779 missing and 4 million either homeless or with damaged homes. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: DISASTER ENVIRONMENT)

Carlos Aguilez, a dog handler, points to a dog at the D Pet Hotel in New York December 5, 2013. Christmas travel season is one of the busiest times for America's 14,000 boarding facilities and all of the at home pet caretakers. And as Americans increasingly identify animals as members of their families, pet care has undergone an upgrade. Today, many pet hotels offer everything from 24/7 video-cams (so owners can see their pets at all times) to group play sessions and hikes and doggy paddle swims. For a price, of course. U.S. pet owners are on track to spend $2.1 billion on pet boarding expenses in 2013, according to market research firm IBISWorld. While the International Boarding & Pet Services Association estimates the average kennel stay at $30 a day, that number can go much higher, especially on the east and west coasts. At D Pet Hotels in Manhattan's uber-hip Chelsea neighborhood, a basic suite costs $84 a night, while a unit with a full sized human bed goes for $200. To match story PET-BOARDING/ Picture taken December 5, 2013. REUTERS/Shannon Stapleton (UNITED STATES - Tags: ANIMALS BUSINESS SOCIETY)

People swim in a pool in Sao Paulo November 28, 2013. REUTERS/Paulo Whitaker (BRAZIL - Tags: SOCIETY TPX IMAGES OF THE DAY)

A combination photo shows a playground slide stands surrounded by the storm surge of Superstorm Sandy on October 30, 2012 (top) and the same location in Bellport, New York on October 23, 2013 (bottom). The historic superstorm killed at least 159 people and damaged more than 650,000 homes when it made landfall on October 29, 2012, devastating parts of New York, New Jersey and several other states. TO MATCH ONE YEAR HURRICANE SANDY ANNIVERSARY BEFORE AFTER PACKAGE. REUTERS/Lucas Jackson (UNITED STATES - Tags: ANNIVERSARY DISASTER ENVIRONMENT)

In this picture taken October 23, 2013 a playground slide that was photographed almost one year ago being flooded by the storm surge of Superstorm Sandy stands in Bellport, New York. The historic superstorm killed at least 159 people and damaged more than 650,000 homes when it made landfall on October 29, 2012, devastating parts of New York, New Jersey and several other states. TO MATCH ONE YEAR HURRICANE SANDY ANNIVERSARY BEFORE AFTER PACKAGE. Picture 5B. REUTERS/Lucas Jackson (UNITED STATES - Tags: ANNIVERSARY DISASTER ENVIRONMENT)

In this picture taken October 30, 2012 a playground slide stands surrounded by the storm surge of Superstorm Sandy in Bellport, New York. The historic superstorm killed at least 159 people and damaged more than 650,000 homes when it made landfall on October 29, 2012, devastating parts of New York, New Jersey and several other states. TO MATCH ONE YEAR HURRICANE SANDY ANNIVERSARY BEFORE AFTER PACKAGE. Picture 5A. REUTERS/Lucas Jackson (UNITED STATES - Tags: DISASTER ENVIRONMENT ANNIVERSARY)

A man exercises on a slide at a playground in Mumbai October 25, 2013. REUTERS/Danish Siddiqui (INDIA - Tags: SOCIETY)

A girl enjoys speeding down a water chute at Kongressbad public swimming bath in Vienna August 8, 2013. Temperatures were expected to rise up to 39 degrees Celsius (102 Fahrenheit) on Thursday, national weather service agency ZAMG reported. REUTERS/Heinz-Peter Bader (AUSTRIA - Tags: SOCIETY ENVIRONMENT)

An elderly man speeds down a water chute at Kongressbad public swimming bath in Vienna August 8, 2013. Temperatures were expected to rise up to 39 degrees Celsius (102 Fahrenheit) on Thursday, national weather service agency ZAMG reported. REUTERS/Heinz-Peter Bader (AUSTRIASOCIETY ENVIRONMENT - Tags: SOCIETY ENVIRONMENT TPX IMAGES OF THE DAY)

A woman rides in a water chute at an Aqua arena in Mogyorod, near Budapest, as temperatures reached 38 degrees Celsius (100 degrees Fahrenheit) in Hungary, August 6, 2013. REUTERS/Laszlo Balogh (HUNGARY - Tags: ENVIRONMENT)

A boy slides down a water chute in a public swimming pool in Thun August 1, 2013. REUTERS/Ruben Sprich (SWITZERLAND - Tags: ENVIRONMENT SOCIETY TPX IMAGES OF THE DAY)

A young man uses a water-slide on a sunny summer day at Berlin's Wannsee lido July 26, 2013. Temperatures in Germany are expected to rise up to 38 degrees Celsius (100 degrees Fahrenheit) on Sunday, German Hydrometeorological Institute reported. REUTERS/Fabrizio Bensch (GERMANY - Tags: ENVIRONMENT SOCIETY)

Children of a member of Brazil's Movimento dos Sem-Teto (Roofless Movement) play at an area that used to be a nursery and school in Sao Paulo March 10, 2013. More than 1,200 people from Brazil's roofless movement live in an explosion prone area that has been contaminated with methane since October 2012, local media reported. According to the Environmental Sanitation Technology Company in the State of Sao Paulo (CETESB) the soil and water from the groundwater are contaminated with methane. Picture taken March 10, 2013. REUTERS/Nacho Doce (BRAZIL - Tags: SOCIETY POVERTY)