Rinji, 10, a young resident of the north eastern Nepalese town of Lukla wears a plastic flower on his lapel near his school on April 15, 2015. Rinji wears a traditional Nepalese outfit of the Magar culture as he and classmates prepare a presentation for their parents in the coming days. Lukla is the gateway for most treks in the Khumbu region including Mount Everest. (Photo by Roberto Schmidt/AFP Photo)

Frankie Dettori leaps in the winners enclosure after riding to win Osaila The Lanwades Stud Nell Gwyn Stakes at Newmarket racecourse on April 15, 2015 in Newmarket, England. (Photo by Alan Crowhurst/Getty Images)

A woman looks at the body of a whale on the beach in Pacifica, Calif., Wednesday, April 15, 2015. The carcass of the 50-foot sperm whale washed ashore at the Pacifica beach just south of San Francisco. Officials from the Marine Mammal Center in Sausalito say it's not immediately clear how the animal died or what would be done with it. A necropsy is planned for Wednesday. (Photo by Jeff Chiu/AP Photo)

Lazio's mascot, a white headed eagle called Olimpia, flies before the start of their Italian Serie A soccer match against Empoli at the Olympic stadium in Rome April 12, 2015. (Photo by Alessandro Bianchi/Reuters)

Lil' Kim attends the Floyd Mayweather media workout at Mayweather Boxing Club on Tuesday, April 14, 2015 in Las Vegas. (Photo by John Salangsang/AP Photo)

A Somali soldier walks past the body of a civilian lying in the street after a car bomb detonated at the gates of a government office complex in the capital Mogadishu, Somalia Tuesday, April 14, 2015. A number of people were killed on Tuesday when attackers stormed the ministry of higher education after a suicide car bomber detonated his vehicle at the gate of the office complex, opening the way for gunmen to enter, according to a senior police officer. (Photo by Farah Abdi Warsameh/AP Photo)

A person is assisted after being wounded when a car bomb detonated at the gates of a government office complex in the capital Mogadishu, Somalia Tuesday, April 14, 2015. (Photo by Farah Abdi Warsameh/AP Photo)

Somali soldiers look at the bodies of suspected attackers after a car bomb that was detonated at the gates of a government office complex in the capital Mogadishu, Somalia, Tuesday, April 14, 2015. (Photo by Farah Abdi Warsameh/AP Photo)

A man runs for cover during fighting following a car bomb that was detonated at the gates of a government office complex in the capital Mogadishu, Somalia Tuesday, April 14, 2015. (Photo by Farah Abdi Warsameh/AP Photo)

Models promoting the Chinese movie “Impossible” salute while wearing futuristic costumes as they arrive for the grand opening of the 5th annual Beijing International Film Festival in Beijing, Thursday, April 16, 2015. (Photo by Mark Schiefelbein/AP Photo)

Godzilla and actress Masami Nagasawa, second right, attend a ceremony in downtown Tokyo for the opening of an entertainment complex run by its studio, Toho, where Godzilla head is on display, Thursday, April 16, 2015. The irradiated monster was appointed special resident and tourism ambassador for this Shinjuku ward, known for its down-home bars and noodle restaurants. Japan is hoping the biggest star in this nation's movie history will help lure tourists during a market-opening strategy launched by the prime minister. (Photo by Shuji Kajiyama/AP Photo)

In this April 8, 2015, photo, Lee Keum-hui, mother of high school student, Cho Eun-hwa, shown in the illustration at right, a missing passenger onboard sunken ferry Sewol, is overcome with emotion as she is interviewed by The Associated Press in her daughter's room at their home in Ansan, South Korea. Cho Eun-hwa, 16, was one of 304 people killed one year ago on Thursday, April 16 in the sinking of the ferry, and among nine whose bodies still have not been recovered. (Photo by Ahn Young-joon/AP Photo)

Relatives of victims of the Sewol ferry disaster weep as they stand on the deck of a boat during a visit to the site of the sunken ferry, off the coast of South Korea's southern island of Jindo April 15, 2015. (Photo by Ed Jones/Reuters)

A mourner looks at pictures of victims from the sunken ferry Sewol at the official memorial altar for the victims in Ansan on the occasion of the first anniversary of the ferry disaster that killed more than 300 passengers, April 16, 2015. (Photo by Kim Hong-Ji/Reuters)

South Korean people fly yellow balloons for Sewol ferry sinking victims to mark the one year anniversary since the disaster, at Jindo-port, on Jindo Island, in the southwestern province of South Jeolla, South Korea, 16 April 2015. The Sewol ferry sank on 16 April 2014 off the coast of South Korea while carrying 476 people on board. Many of the dead were students on an excursion aboard the overloaded vessel. Of the 476 on board, just 172 survived, including senior crew members who were among the first to leave the stricken ferry. Nine people were declared missing. The tragedy is blamed on human error. In November 2014, the Sewol's captain, Lee Joon Seuk, was sentenced to 36 years in prison for abandoning the passengers. (Photo by Jeon Heon-Kyun/EPA)

A relative (R) of the victims of South Korea's Sewol ferry disaster is in a nose-to-nose stand-off with a policeman (L) during an anti-government protest near the presidential residence in Seoul on April 17, 2015. Dozens of people continued their protests overnight after thousands of mourners rallied to mark the first anniversary of the disaster that claimed 304 lives. (Photo by Jung Yeon-Je/AFP Photo)

Prelates take pictures as Pope Francis celebrates an Armenian-Rite Mass to commemorate the 100th anniversary of the Armenian Genocide, in St. Peter's Basilica, at the Vatican Sunday, April 12, 2015. Historians estimate that up to 1.5 million Armenians were killed by Ottoman Turks around the time of World War I, an event widely viewed by genocide scholars as the first genocide of the 20th century. Turkey however denies that the deaths constituted genocide, saying the toll has been inflated, and that those killed were victims of civil war and unrest. (Photo by Gregorio Borgia/AP Photo)

Goldfish swim in the shallows of Teller Lake #5 outside of Boulder, Colorado April 10, 2015. A handful of goldfish dumped into a Colorado lake, evidently by a pet owner years ago, have reproduced and thousands of the non-native fish now threaten indigenous aquatic species, state wildlife officials said on Friday. (Photo by Rick Wilking/Reuters)

(Top row L-R) President of El Salvador, Salvador Sanchez Ceren, U.S. President Barack Obama and Grenada's Prime Minister Keith Mitchell attend the inauguration ceremony of Summit of the Americas at the ATLAPA Convention Center in Panama City April 10, 2015. Also pictured are Prime Minister of Belize Dean Barrow (bottom row L-R), U.N. Secretary General Ban Ki-moon and Panama's President Juan Carlos Varela. (Photo by Jonathan Ernst/Reuters)

Artists apply paint on a man blending himself into the background in front of the wall of an ancient building in Shanghai, April 10, 2015. Several local artists demonstrate in this form on the street to raise awareness of the protection of traditional constructions in the city of Shanghai, local media reported. (Photo by Reuters/Stringer)

A woman walks past a man blending himself into the background by covering his body with paint, in front of the wall of an ancient building in Shanghai, April 10, 2015. (Photo by Reuters/Stringer)

Participants try to fly a kite in the shape of a manta ray during a kite competition held in Weifang, Shandong Province April 11, 2015. A total of 85 teams with over 1000 kites took part in the competition on Saturday, local media reported. (Photo by Reuters/Stringer)

Indian Sikh pilgrims take pictures as they arrive at the Wagah border railway station in Pakistan, to attend the Baisakhi festival in Lahore April 11, 2015. Hundreds of Sikh pilgrims arrived into Pakistan to celebrate the festival at the shrines of Panja Sahib and Nankana Sahib, the birth place of Sikh faith founder Guru Nanak Dev. Baisakhi is the beginning of the solar year in the Indian state of Punjab. (Photo by Mohsin Raza/Reuters)

A biker performs a jump during a bike festival in front of the city hall in Vienna, April 11, 2015. (Photo by Leonhard Foeger/Reuters)

Girls look at a robot and a crocodile made from used car components, created by mechanic and welder Sergei Kulagin, at his exhibition in Russia's Siberian city of Krasnoyarsk April 11, 2015. Kulagin, who is an amateur artist, has created about one hundred sculptures made from used car parts in his free time and his exhibition opens on April 13, according to organisers. (Photo by Ilya Naymushin/Reuters)

Militants loyal to Yemen's President Abd-Rabbu Mansour Hadi stand by a tank they used in fighting against Houthi fighters in the southern port city of Aden April 11, 2015. Heavy Saudi-led air strikes and ground combat between armed factions battered southern Yemen on Saturday, killing around 20 Iran-allied Houthi fighters and two rival militiamen, residents said. (Photo by Reuters/Stringer)

Track marshals use fire extinguishers during a drill in preparation for the upcoming Monaco Formula One Grand Prix in Monaco April 11, 2015. The Monaco F1 Grand Prix will take place in the Monaco principality on May 24. (Photo by Eric Gaillard/Reuters)

A sign for cosmetic products is seen in front of ships lined up at the Apapa port in Lagos, Nigeria, April 11, 2015. (Photo by Joe Penney/Reuters)

People look at blooming cherry blossom trees on the Tidal Basin in Washington April 11, 2015. (Photo by Joshua Roberts/Reuters)

Believers hold candles during the Holy Fire ceremony on the eve of Orthodox Easter service in front of Volodymysky Cathedral in Kiev April 11, 2015. (Photo by Valentyn Ogirenko/Reuters)

Mercedes AMG Petronas F1 Team's British driver Lewis Hamilton celebrates after winning the Formula One Chinese Grand Prix in Shanghai on April 12, 2015. (Photo by Fred Dufour/AFP Photo)

Mercedes Formula One driver Lewis Hamilton of Britain sprays champagne at a grid girl as he celebrates his victory on the podium after the Chinese F1 Grand Prix at the Shanghai International Circuit, April 12, 2015. (Photo by Carlos Barria/Reuters)

Mercedes driver Lewis Hamilton of Britain sprays champagne on a track attendant on the podium after winning the Chinese Formula One Grand Prix at Shanghai International Circuit in Shanghai, China, Sunday, April 12, 2015. (Photo by Mark Schiefelbein/AP Photo)

British Formula One driver Lewis Hamilton (C) celebrates with second placed German Formula One driver Nico Rosberg (R) of Mercedes AMG GP after winning the Chinese Formula One Grand Prix at the Shanghai International circuit in Shanghai, China, 12 April 2015. (Photo by Wu Hong/EPA)

Believers take Easter eggs during the celebrations for the Orthodox Easter in the Russian far eastern city of Vladivostok, April 12, 2015. (Photo by Yuri Maltsev/Reuters)

Police use tear gas and water cannons against leftist protesters, as one of them shoots firecrackers at an armoured police vehicle, during clashes after the office of Istanbul's Governor banned the concert of left-wing band Grup Yorum in Istanbul April 12, 2015. (Photo by Yagiz Karahan/Reuters)

A plain clothes police officer detains a leftist protester during clashes, after the office of Istanbul's Governor banned the concert of left-wing band Grup Yorum in Istanbul April 12, 2015. (Photo by Yagiz Karahan/Reuters)

The 37-meter “The Tree of Life” is pictured at the Expo 2015 work site near Milan April 3, 2015. Three weeks before the Milan Expo opens on May 1, the site of the showpiece event is still a mass of trucks raising dust and workers in hard hats racing to finish building after delays, graft and cost overruns. (Photo by Giorgio Perottino/Reuters)

A worker is pictured at the Thailand pavilion at the Expo 2015 work site near Milan April 3, 2015. (Photo by Giorgio Perottino/Reuters)

An artist wearing a mask of a horse head performs at the Mauer Park in Berlin April 12, 2015. (Photo by Pawel Kopczynski/Reuters)

A demonstrator attends a protest against Brazil's President Dilma Rousseff in Copacabana in Rio de Janeiro April 12, 2015. (Photo by Ricardo Moraes/Reuters)

India's Prime Minister Narendra Modi gestures during the opening ceremony of the world's largest industrial technology fair, the Hannover Messe, in Hanover April 12, 2015. (Photo by Wolfgang Rattay/Reuters)

A woman looks at a giant puppet, a tradition in India which will be used at the opening of the industrial fair in Hanover, Germany, Sunday, April 12, 2015. India is this years partner country and participates in one of the worlds biggest industrial fair that lasts till April 17, 2015. (Photo by Frank Augstein/AP Photo)

A lion is projected on a screen as German Chancellor Angela Merkel (top R row, 2nd L) and India's Prime Minister Narendra Modi attend the opening ceremony of the world's largest industrial technology fair, the Hannover Messe, in Hanover April 12, 2015. (Photo by Wolfgang Rattay/Reuters)

A member of a dancing group performs to commemorate victims of a fire at a neighborhood on a hill in Las Canas, an area which was also affected by the fire, in Valparaiso April 12, 2015. This Sunday marks the first anniversary of the deadly wildfire in the hills of Valparaiso that destroyed thousands of predominantly low-income, wooden houses, leaving at least 15 people dead, according to officials. (Photo by Rodrigo Garrido/Reuters)

Blake Scherrer looks at a Barrett .50 caliber rifle in the trade booths showroom during the National Rifle Association's annual meeting in Nashville, Tennessee April 12, 2015. (Photo by Harrison McClary/Reuters)