People hold banners as Italian conductor and pianist Alberto Veronesi plays piano during a performance of the first act of Giacomo Puccini's famed romance opera 'La Boheme' outside the La Scala theatre as part of a protest against the entertainment sector's crisis caused by the coronavirus disease (COVID-19) pandemic and restrictions, in Milan, Italy, April 20, 2021. The banners read: "Salary to precarious workers to spread the culture" and "More power to theatre workers". REUTERS/Flavio Lo Scalzo

Opera singer performs the first act of Giacomo Puccini's famed romance opera 'La Boheme' outside the La Scala theatre as part of a protest against the entertainment sector's crisis caused by the coronavirus disease (COVID-19) pandemic and restrictions, in Milan, Italy April 20, 2021. REUTERS/Flavio Lo Scalzo

Opera singer performs the first act of Giacomo Puccini's famed romance opera 'La Boheme' outside the La Scala theatre as part of a protest against the entertainment sector's crisis caused by the coronavirus disease (COVID-19) pandemic and restrictions, in Milan, Italy April 20, 2021. REUTERS/Flavio Lo Scalzo

Opera singer performs the first act of Giacomo Puccini's famed romance opera 'La Boheme' outside the La Scala theatre as part of a protest against the entertainment sector's crisis caused by the coronavirus disease (COVID-19) pandemic and restrictions, in Milan, Italy April 20, 2021. REUTERS/Flavio Lo Scalzo

A person wearing a protective suit looks out from a window as opera singer performs the first act of Giacomo Puccini's famed romance opera 'La Boheme' outside the La Scala theatre as part of a protest against the entertainment sector's crisis caused by the coronavirus disease (COVID-19) pandemic and restrictions, in Milan, Italy April 20, 2021. REUTERS/Flavio Lo Scalzo TPX IMAGES OF THE DAY

Italian conductor and pianist Alberto Veronesi plays piano during a performance of the first act of Giacomo Puccini's famed romance opera 'La Boheme' outside the La Scala theatre as part of a protest against the entertainment sector's crisis caused by the coronavirus disease (COVID-19) pandemic and restrictions, in Milan, Italy, April 20, 2021. REUTERS/Flavio Lo Scalzo

Opera singer performs the first act of Giacomo Puccini's famed romance opera 'La Boheme' outside the La Scala theatre as part of a protest against the entertainment sector's crisis caused by the coronavirus disease (COVID-19) pandemic and restrictions, in Milan, Italy April 20, 2021. REUTERS/Flavio Lo Scalzo

Horse Racing - Dubai World Cup - Meydan Racecourse, Dubai, United Arab Emirates - March 27, 2021 Rebelʼs Romance ridden by William Buick in action during the 2:05 UAE Derby REUTERS/Christopher Pike

Horse Racing - Dubai World Cup - Meydan Racecourse, Dubai, United Arab Emirates - March 27, 2021 Rebelʼs Romance ridden by William Buick in action during the 2:05 UAE Derby REUTERS/Christopher Pike

Horse Racing - Dubai World Cup - Meydan Racecourse, Dubai, United Arab Emirates - March 27, 2021 William Buick celebrates winning the 2:05 UAE Derby on Rebelʼs Romance REUTERS/Christopher Pike

Horse Racing - Dubai World Cup - Meydan Racecourse, Dubai, United Arab Emirates - March 27, 2021 William Buick celebrates winning the 2:05 UAE Derby on Rebelʼs Romance REUTERS/Christopher Pike

Horse Racing - Dubai World Cup - Meydan Racecourse, Dubai, United Arab Emirates - March 27, 2021 Rebelʼs Romance ridden by William Buick in action during the 2:05 UAE Derby REUTERS/Christopher Pike

Horse Racing - Dubai World Cup - Meydan Racecourse, Dubai, United Arab Emirates - March 27, 2021 Rebelʼs Romance ridden by William Buick in action during the 2:05 UAE Derby REUTERS/Christopher Pike

Horse Racing - Derby Festival - Epsom Downs Racecourse, Epsom, Britain - July 4, 2020 Summer Romance ridden by William Buick wins the Princess Elizabeth stakes ahead of Cloak Of Spirits ridden by Andrea Atzeni, as racing resumed behind closed doors after the outbreak of the coronavirus disease (COVID-19) David Davies/Pool via REUTERS

Horse Racing - Derby Festival - Epsom Downs Racecourse, Epsom, Britain - July 4, 2020 Summer Romance ridden by William Buick wins the Princess Elizabeth stakes ahead of Cloak Of Spirits ridden by Andrea Atzeni, as racing resumed behind closed doors after the outbreak of the coronavirus disease (COVID-19) David Davies/Pool via REUTERS

Horse Racing - Derby Festival - Epsom Downs Racecourse, Epsom, Britain - July 4, 2020 Summer Romance ridden by William Buick wins the Princess Elizabeth stakes ahead of Cloak Of Spirits ridden by Andrea Atzeni, as racing resumed behind closed doors after the outbreak of the coronavirus disease (COVID-19) Edward Whitaker/Pool via REUTERS

A woman stands inside a shop offering lingerie for Valentine's Day in Damascus, Syria February 13, 2020. Picture taken February 13, 2020. REUTERS/Yamam Al Shaar

Hoar-frost covered trees are seen at a lake on a foggy day near Csomor, Hungary, January 17, 2020. REUTERS/Bernadett Szabo

Hoar-frost covered trees are seen at a lake on a foggy day near Csomor, Hungary, January 17, 2020. REUTERS/Bernadett Szabo

A hoar-frost covered tree is seen on a foggy day near Csomor, Hungary, January 17, 2020. REUTERS/Bernadett Szabo TPX IMAGES OF THE DAY

A Jungfraubahnen train carriage makes its way up to Jungfraujoch at the Kleine Scheidegg near Wengen, Switzerland January 16, 2020. REUTERS/Leonhard Foeger

Climbers trek on the Perito Moreno glacier, near the city of El Calafate in the Patagonian province of Santa Cruz, Argentina January 14, 2020. Picture taken January 14, 2020. REUTERS/Agustin Marcarian

A general view of the Perito Moreno glacier, near the city of El Calafate in the Patagonian province of Santa Cruz, Argentina January 14, 2020. Picture taken January 14, 2020. REUTERS/Agustin Marcarian

Tourists look at the Perito Moreno glacier, near the city of El Calafate in the Patagonian province of Santa Cruz, Argentina January 14, 2020. Picture taken January 14, 2020. REUTERS/Agustin Marcarian

A man walks under the Brankov bridge amidst dense fog and smog in Belgrade, Serbia, January 15, 2020. REUTERS/Marko Djurica

A woman walks under the Brankov bridge amidst dense fog and smog in Belgrade, Serbia, January 15, 2020. REUTERS/Marko Djurica

A watchtower is photographed at the fenced area which will be used as heliport during the upcoming World Economic Forum (WEF) in Davos, Switzerland Januar 13, 2020. REUTERS/Arnd Wiegmann

The sun sets over snow-covered field as seen from a train heading to the coal city of Hegang, in Heilongjiang province, northeast China January 1, 2020. Picture taken January 1, 2020. REUTERS/Ryan Woo

A couple embrace before participating in the annual "No Pants Subway Ride" in New York City, U.S., January 12, 2020. REUTERS/Brendan McDermid

Soldiers patrol the Mormon community in La Mora, Sonora, Mexico January 10, 2020. Picture taken on January 10, 2020. REUTERS/Carlos Jasso

Moonset is seen near La Mora, Sonora, Mexico January 11, 2020. Picture taken on January 11, 2020. REUTERS/Carlos Jasso

The full moon rises behind a street light during the penumbral lunar eclipse in Yevpatoriya, Crimea January 10, 2020. Picture taken January 10, 2020. REUTERS/Alexey Pavlishak

The full moon rises behind a street light during the penumbral lunar eclipse in Yevpatoriya, Crimea January 10, 2020. Picture taken January 10, 2020. REUTERS/Alexey Pavlishak

The full moon is seen rising behind a street light during the penumbral lunar eclipse in Ronda, near Malaga, southern Spain January 10, 2020. REUTERS/Jon Nazca TPX IMAGES OF THE DAY

The full moon is seen rising behind an electric tower during the penumbral lunar eclipse in Ronda, near Malaga, southern Spain January 10, 2020. REUTERS/Jon Nazca

The full moon is seen rising behind a tree during the penumbral lunar eclipse in Ronda, near Malaga, southern Spain January 10, 2020. REUTERS/Jon Nazca

Moon is seen behind the mountain seen from the Presena Glacier, in Passo Paradiso, Italy, January 9, 2020. Picture taken January 9, 2020. REUTERS/Yara Nardi

Mountains are seen from the Presena Glacier, in Passo Paradiso, Italy, January 9, 2020. Picture taken January 9, 2020. REUTERS/Yara Nardi

A general view shows deep cracks on the bottom of Studena dam near Pernik, Bulgaria, December 8, 2020. Picture taken December 8, 2020. REUTERS/Dimitar Kyosemarliev

A general view shows Studena dam near Pernik, Bulgaria, December 8, 2020. Picture taken December 8, 2020. REUTERS/Dimitar Kyosemarliev

People gather at a deck on the banks of Guaiba River, as a dark horizon caused by smoke from Australia's bush fires is seen, in Porto Alegre, Brazil January 8, 2020. REUTERS/Diego Vara

Swans swim in a partly frozen lake during sunrise in Minsk, Belarus January 3, 2020. REUTERS/Vasily Fedosenko

Newly-hatched baby sea turtles make their way into the Mediterranean Sea for the first time, as part of the Israeli Sea Turtle Rescue Center's conservation programme, at a beach near Mikhmoret north of Tel Aviv, Israel September 9, 2019. Picture taken September 9, 2019. REUTERS/Amir Cohen

A newly-hatched baby sea turtle makes its way into the Mediterranean Sea for the first time, as part of the Israeli Sea Turtle Rescue Center's conservation programme, at a beach near Mikhmoret north of Tel Aviv, Israel September 9, 2019. Picture taken September 9, 2019. REUTERS/Amir Cohen

A newly-hatched baby sea turtle makes its way into the Mediterranean Sea for the first time, as part of the Israeli Sea Turtle Rescue Center's conservation programme, at a beach near Mikhmoret north of Tel Aviv, Israel September 9, 2019. Picture taken September 9, 2019. REUTERS/Amir Cohen

A woman paddles on a stand-up board during sunrise in a beach in Larnaca, Cyprus September 15, 2019. REUTERS/Yiannis Kourtoglou

People paddle on a stand-up board during sunrise in a beach in Larnaca, Cyprus September 15, 2019. REUTERS/Yiannis Kourtoglou

People paddle on a stand-up board during sunrise in a beach in Larnaca, Cyprus September 15, 2019. REUTERS/Yiannis Kourtoglou

People ride a pedal boat on the Vltava River as the sun sets over the Prague Castle in Prague, Czech Republic, September 10, 2019. REUTERS/David W Cerny

People ride pedal boats on the Vltava River as the sun sets over the Prague Castle in Prague, Czech Republic, September 10, 2019. REUTERS/David W Cerny

People protect themselves from the sun with parasols while rowing in Central Park as a heatwave continues to affect the region in New York, U.S., July 21, 2019. REUTERS/Andrew Kelly

A general view of Fanore beach in evening light, Fanore, Ireland, July 7, 2019. REUTERS/Peter Cziborra

72nd Cannes Film Festival - Photocall for the film "Family Romance, LLC" presented as part of special screenings - Cannes, France, May 19, 2019. Director Werner Herzog poses. REUTERS/Stephane Mahe

72nd Cannes Film Festival - Photocall for the film "Family Romance, LLC" presented as part of special screenings - Cannes, France, May 19, 2019. Director Werner Herzog poses. REUTERS/Stephane Mahe

72nd Cannes Film Festival - Photocall for the film "Family Romance, LLC" presented as part of special screenings - Cannes, France, May 19, 2019. Producer Roc Morin poses. REUTERS/Stephane Mahe

72nd Cannes Film Festival - Photocall for the film "Family Romance, LLC" presented as part of special screenings - Cannes, France, May 19, 2019. Director Werner Herzog poses. REUTERS/Stephane Mahe