A woman walks past servicemen of the self-proclaimed Donetsk People's Republic (DNR), who take part in a rehearsal for the Victory Day parade in Donetsk, Ukraine on May 3, 2018. (Photo by Alexander Ermochenko/Reuters)

Tightrope walker Tatian-Mosio Bongonga hangs from a tightrope as she pauses while scaling the Monmartre hill towards the Sacre Coeur Basilica (not pictured) in Paris, France, July 20, 2018. (Photo by Philippe Wojazer/Reuters)

A model presents a creation by designer Richard Rene as part of his Spring/Summer 2019 women's ready-to-wear collection show for Guy Laroche fashion house during Paris Fashion Week in Paris, France, September 26, 2018. (Photo by Stephane Mahe/Reuters)

A girl stretches next to a pram on the embankment of the Moskva river in Moscow on October 18, 2018. The European part of Russia enjoys an unusually warm weather for the season with temperatures reaching up to 22 degrees centigrade. (Photo by Mladen Antonov/AFP Photo)

Chase Outlaw dodges Cochise after being bucked off in the final round of the PBR Unleash the Beast bull riding event at Madison Square Garden on January 06, 2019 in New York City. (Photo by Sarah Stier/Getty Images)

A man carries a sheep after it was rescued from mud in Sanliurfa, Turkey on January 9, 2019. Total of 67 sheep and a donkey rescued from mud by gendarmerie forces, firefighters and local people in Sanliurfa's Bozova district. (Photo by Halil Fidan/Anadolu Agency/Getty Images)

In this January 16, 2019 photo, a sculpture of a Plesiosaur is displayed at an exhibit about the studies of researchers from the National Museum made in Antartica, during a media presentation of the exhibit in Rio de Janeiro, Brazil. The National Museum will inaugurate on Jan. 17 their first exhibition after the fire, held at the building that houses the Cultural Center and Museum of Brazil's Mint. (Photo by Leo Correa/AP Photo)

In this October 27, 1983 file photo, soldiers brandish captured AK-47 rifles from the windows of a civilian vehicle as they drive near Point Salines Airport in St. George, Grenada. In 1983, U.S. forces invaded the Caribbean island of Grenada after accusing the government of allying itself with Communist Cuba. (Photo by Doug Jennings/AP Photo)