A Palestinian boy looks out of a car window as he waits to leave Gaza with his family through Rafah border crossing with Egypt, in the southern Gaza Strip February 23, 2021. Picture taken February 23, 2021. REUTERS/Ibraheem Abu Mustafa TPX IMAGES OF THE DAY

A Palestinian vendor sells tea outside Rafah border crossing with Egypt, in the southern Gaza Strip February 23, 2021. Picture taken February 23, 2021. REUTERS/Ibraheem Abu Mustafa

Members of Palestinian security forces keep watch as a taxi carrying passengers arrives at the gate of Rafah border crossing with Egypt, in the southern Gaza Strip February 23, 2021. Picture taken February 23, 2021. REUTERS/Ibraheem Abu Mustafa

A Palestinian vendor sells food outside Rafah border crossing with Egypt, in the southern Gaza Strip February 23, 2021. Picture taken February 23, 2021. REUTERS/Ibraheem Abu Mustafa

Palestinian taxi driver Jaber Abu Talal gestures during an interview with Reuters at Rafah border crossing with Egypt, in the southern Gaza Strip February 23, 2021. Picture taken February 23, 2021. REUTERS/Ibraheem Abu Mustafa

A Palestinian woman waits to leave Gaza through Rafah border crossing with Egypt, in the southern Gaza Strip February 23, 2021. Picture taken February 23, 2021. REUTERS/Ibraheem Abu Mustafa

A Palestinian boy looks out of a car window as he waits to leave Gaza with his family through Rafah border crossing with Egypt, in the southern Gaza Strip February 23, 2021. Picture taken February 23, 2021. REUTERS/Ibraheem Abu Mustafa

A bedroom of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

A plastic printed model of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

A real estate listing sheet for 3D printed house for sale is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

The kitchen of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

Business cards of the builder of a proof of concept 3D printed house are pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

The inside layers of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

The outside of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

The inside layers of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

Kirk Andersen, the director of operations at SQ4D Inc., poses for a portrait as he talks about the strength of his house at a proof of concept 3D printed house in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

The outside layers of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

The main entrance of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

Kirk Andersen, the director of operations at SQ4D Inc., poses for a portrait as he talks about the strength of his house at a proof of concept 3D printed house in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

The outside of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

Kirk Andersen, the director of operations at SQ4D Inc., poses for a portrait at a proof of concept 3D printed house in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

The main entrance of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

A garage in a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

The outside of a proof of concept 3D printed house is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri

Musical instruments beloinging to late doctor Jeremias Ramos are seen in a room as the coronavirus disease (COVID-19) outbreak continues ahead of Valentine's Day in La Libertad, El Salvador, February 12, 2021. Beatriz de Ramos, the wife of doctor Ramos, keeps her husband's personal things in a room where he used to practice music, as a way to remember the love of her life, with whom she had a long relationship with since they were very young, until his death from the coronavirus disease seven months ago. REUTERS/Jose Cabezas

Beatriz de Ramos holds the medical gown of her late husband, doctor Jeremias Ramos, as the coronavirus disease (COVID-19) outbreak continues ahead of Valentine's Day in La Libertad, El Salvador, February 12, 2021. Beatriz de Ramos keeps her husband's personal things in a room where he used to practice music, as a way to remember the love of her life, with whom she had a long relationship with since they were very young, until his death from the coronavirus disease seven months ago. REUTERS/Jose Cabezas

A bible belonging to late doctor Jeremias Ramos is seen open at a altar, as the coronavirus disease (COVID-19) outbreak continues ahead of Valentine's Day in La Libertad, El Salvador, February 12, 2021. Beatriz de Ramos, the wife of doctor Ramos, keeps her husband's personal things in a room where he used to practice music, as a way to remember the love of her life, with whom she had a long relationship with since they were very young, until his death from the coronavirus disease seven months ago. REUTERS/Jose Cabezas

Personal belongings of doctor Jeremias Ramos are seen at an altar as the coronavirus disease (COVID-19) outbreak continues ahead of Valentine's Day in La Libertad, El Salvador, February 12, 2021. Beatriz de Ramos, the wife of doctor Ramos, keeps her husband's personal things in a room where he used to practice music, as a way to remember the love of her life, with whom she had a long relationship with since they were very young, until his death from the coronavirus disease seven months ago. REUTERS/Jose Cabezas

Beatriz de Ramos holds a wedding picture of her late husband doctor Jeremias Ramos and herself as the coronavirus disease (COVID-19) outbreak continues ahead of Valentine's Day in La Libertad, El Salvador, February 12, 2021. Beatriz de Ramos keeps her husband's personal things in a room where he used to practice music, as a way to remember the love of her life, with whom she had a long relationship with since they were very young, until his death from the coronavirus disease seven months ago. REUTERS/Jose Cabezas

A man receives a coronavirus disease (COVID-19) vaccination on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

A man receives a coronavirus disease (COVID-19) vaccination on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

A woman receives a coronavirus disease (COVID-19) vaccination on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

A person receives a coronavirus disease (COVID-19) vaccination on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

Longshore worker Patty Castillo, 46, receives a coronavirus disease (COVID-19) vaccination on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

A man receives a coronavirus disease (COVID-19) vaccination on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

A man receives a coronavirus disease (COVID-19) vaccination on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

A man receives a coronavirus disease (COVID-19) vaccination on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

Longshore worker Patty Castillo, 46, receives a coronavirus disease (COVID-19) vaccination on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

People line up for drive-through coronavirus disease (COVID-19) vaccinations on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

A woman receives a coronavirus disease (COVID-19) vaccination on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

Healthcare workers prepare to give coronavirus disease (COVID-19) vaccinations on the first day that vaccines were available for port workers, in Long Beach, California, U.S., February 12, 2021. REUTERS/Lucy Nicholson

The skyline with its financial district is seen double as the spread of the coronavirus disease (COVID-19) continues during an extended lockdown and a demand by the German government for more home office possibilities, in Frankfurt, Germany, February 11, 2021. Picture taken on long-time exposure while zoomed. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

The skyline with its financial district is seen double as the spread of the coronavirus disease (COVID-19) continues during an extended lockdown and a demand by the German government for more home office possibilities in Frankfurt, Germany, February 11, 2021. Picture taken on long-time exposure while zoomed. REUTERS/Kai Pfaffenbach

Soccer Football - FA Cup - Fifth Round - Burnley v AFC Bournemouth - Turf Moor, Burnley, Britain - February 9, 2021 AFC Bournemouth's Sam Surridge in action with Burnley's Kevin Long Pool via REUTERS/Lindsey Parnaby

Aivis Berzins sits inside his home-made sleigh on a 170-metre-long bobsleigh track, which he built, stretching through his family orchard in Rujiena, Latvia February 6, 2021. Picture taken February 6, 2021. REUTERS/Janis Laizans

Aivis Berzins waves to his daughter and his wife Dana while they ride in a home-made sleigh on a 170-metre-long bobsleigh track, build by the husband, stretching through their orchard in Rujiena, Latvia February 6, 2021. Picture taken February 6, 2021. REUTERS/Janis Laizans

Miks Berzins rides in a home-made sleigh on a 170-metre-long bobsleigh track, build by his father Aivis Berzins, stretching through their orchard in Rujiena, Latvia February 6, 2021. Picture taken February 6, 2021. REUTERS/Janis Laizans

Dana Berzina and her daughter ride in a home-made sleigh on a 170-metre-long bobsleigh track, build by her husband Aivis Berzins, stretching through their orchard in Rujiena, Latvia February 6, 2021. Picture taken February 6, 2021. REUTERS/Janis Laizans

Dana Berzina and her daughter ride in a home-made sleigh on a 170-metre-long bobsleigh track, build by her husband Aivis Berzins, stretching through their orchard in Rujiena, Latvia February 6, 2021. Picture taken February 6, 2021. REUTERS/Janis Laizans

Dana Berzina and her children are in a home-made sleigh on a 170-metre-long bobsleigh track, build by her husband Aivis Berzins, stretching through their orchard in Rujiena, Latvia February 6, 2021. Picture taken February 6, 2021. REUTERS/Janis Laizans

Dana Berzina sits with her daughter in home-made sleigh on a 170-metre-long bobsleigh track, build by her husband Aivis Berzins, stretching through their orchard in Rujiena, Latvia February 6, 2021. Picture taken February 6, 2021. REUTERS/Janis Laizans

Athletics - ISTAF Berlin Athletics Indoor Meeting - Mercedes-Benz Arena, Berlin, Germany - February 5, 2021 Germany's Malaika Mihambo celebrates winning the Women's Long Jump Pool via REUTERS/Tobias Schwarz

Athletics - ISTAF Berlin Athletics Indoor Meeting - Mercedes-Benz Arena, Berlin, Germany - February 5, 2021 Germany's Malaika Mihambo in action during the Women's Long Jump Pool via REUTERS/Tobias Schwarz

Athletics - ISTAF Berlin Athletics Indoor Meeting - Mercedes-Benz Arena, Berlin, Germany - February 5, 2021 Germany's Caroline Joyeux in action during the Women's Long Jump Pool via REUTERS/Tobias Schwarz

Athletics - ISTAF Berlin Athletics Indoor Meeting - Mercedes-Benz Arena, Berlin, Germany - February 5, 2021 Germany's Merle Homeier in action during the Women's Long Jump Pool via REUTERS/Tobias Schwarz

Athletics - ISTAF Berlin Athletics Indoor Meeting - Mercedes-Benz Arena, Berlin, Germany - February 5, 2021 Taliyah Brooks of the U.S. in action during the Women's Long Jump Pool via REUTERS/Tobias Schwarz TPX IMAGES OF THE DAY

Athletics - ISTAF Berlin Athletics Indoor Meeting - Mercedes-Benz Arena, Berlin, Germany - February 5, 2021 Taliyah Brooks of the U.S. reacts during the Women's Long Jump Pool via REUTERS/Tobias Schwarz

Athletics - ISTAF Berlin Athletics Indoor Meeting - Mercedes-Benz Arena, Berlin, Germany - February 5, 2021 Hungary's Anasztazia Nguyen in action during the Women's Long Jump Pool via REUTERS/Tobias Schwarz

Athletics - ISTAF Berlin Athletics Indoor Meeting - Mercedes-Benz Arena, Berlin, Germany - February 5, 2021 Ukraine's Maryna Bekh-Romanchuk in action during the Women's Long Jump Pool via REUTERS/Tobias Schwarz

Pro-democracy activists Lee Cheuk-yan and Leung Kwok-hung, also known as "Long Hair", hold placards outside West Kowloon Magistrates' Courts before facing charges related to an illegal vigil assembly commemorating the 1989 Tiananmen Square crackdown, in Hong Kong, China February 5, 2021. REUTERS/Tyrone Siu