A Somali boy carries swordfish as he rides on a Vespa scooter taxi in southern Mogadishu, Somalia, in this August 16, 2010 file photo. Scooter maker Piaggio is expected to report Q1 results this week. (Photo by Feisal Omar/Reuters)

Local residents clean their bodies next to their homes which were destroyed after last week's earthquake in Bhaktapur, Nepal, May 4, 2015. (Photo by Athit Perawongmetha/Reuters)

A man takes a picture near a piece of a travelling art exhibition called “Lapidarium” by Mexican artist Gustavo Aceves, in front of Brandenburg Gate in Berlin, Germany, May 4, 2015. The artwork is made up of 20 giant horses made of Italian marble, bronze, cast iron and granite, with some of them reaching six metres (19.7 ft) in height. (Photo by Hannibal Hanschke/Reuters)

One of 20 horses in the travelling art exhibition called “Lapidarium” by Mexican artist Gustavo Aceves, is seen near Brandenburg Gate in Berlin, Germany, May 4, 2015. (Photo by Hannibal Hanschke/Reuters)

A man walks past one of 20 horses that make up a travelling art exhibition called “Lapidarium” by Mexican artist Gustavo Aceves, near Brandenburg Gate in Berlin, Germany, May 4, 2015. (Photo by Hannibal Hanschke/Reuters)

Groom Khil Bahadur Ghale (L), 25, and bride Bishma Punj (C), 24, perform rituals during their wedding ceremony at a temple in Kathmandu, Nepal May 4, 2015. The couple decided to go ahead with the wedding despite the recent earthquake that struck the country last week. (Photo by Adnan Abidi/Reuters)

A veiled Nepalese Hindu bride, background, arrives at a temple for her wedding in Kathmandu, Nepal, Monday, May 4, 2015. Life has been slowly returning to normal in Kathmandu after the April 25 devastating earthquake that has already killed thousands of people, flattened mountain villages and destroyed building and archaeological sites. (Photo by Bernat Amangue/AP Photo)

Nepalese couple Anita Thapa, 22, (C) and Sagar KC, 24, (back) are carried by their respective brothers towards their bus during their wedding which was postponed after the 7.8 magnitude earthquake which struck the Himalayan nation on April 25, in Mahadevisthan temple in Kathmandu on May 3, 2015. The death toll in Nepal from the devastating earthquake has risen to 7,040, an official from the National Emergency Operations Centre said on May 3, 2015. (Photo by Philippe Lopez/AFP Photo)

A Palestinian fruit vendor sells watermelons along a roadside at the Israeli army Hawara checkpoint near the West Bank city of Nablus May 4, 2015. (Photo by Abed Omar Qusini/Reuters)

Russia's national ice hockey team supporters wave flags during their ice hockey World Championship game against the U.S. at the CEZ Arena in Ostrava, Czech Republic, May 4, 2015. (Photo by Laszlo Balogh/Reuters)

Helicopter of Netherlands participates in NATO's Dynamic Mongoose anti-submarine exercise in the North Sea off the coast of Norway, May 4, 2015. NATO launched one of its biggest-ever anti-submarine exercises in the North Sea on Monday, inviting non-member Sweden for the first time, amid increasing tensions between Russia and its northern neighbors. More than a dozen vessels from 11 countries are participating in the “Dynamic Mongoose” exercise. (Photo by Marit Hommedal/Reuters/NTB Scanpix)

People dressed as Star Wars characters Chewbacca (front), Princess Leia (C) and Han Solo throw out the ceremonial first pitch before the MLB baseball game between the Tampa Bay Rays and the Boston Red Sox at Fenway Park in Boston, Massachusetts, United States May 4, 2015. (Photo by Brian Snyder/Reuters)

Trains stand on the tracks during a nationwide strike by Germany's train driver's union GDL at Frankfurt train station, Germany, May 5, 2015. A record-setting seven-day strike by the GDL union of train drivers began on Monday, the eighth in a series of walkouts over pay and working conditions, threatening commuter chaos and disruption to vital supply chains. (Photo by Ralph Orlowski/Reuters)

A visitor poses for a photo with a Crayon Shin-chan model during an exhibition at Joy City in Beijing May 5, 2015. The exhibition, which showcased fifty models of the Japanese cartoon character in different poses and expressions, will run from April 18 to June 22. (Photo by Jason Lee/Reuters)

A visitor poses for a photo with a Crayon Shin-chan model during an exhibition at Joy City in Beijing May 5, 2015. (Photo by Jason Lee/Reuters)

A visitor poses for a photo with a Crayon Shin-chan model during an exhibition at Joy City in Beijing May 5, 2015. (Photo by Jason Lee/Reuters)

A visitor poses for a photo with a Crayon Shin-chan model during an exhibition at Joy City in Beijing May 5, 2015. (Photo by Jason Lee/Reuters)

Technician Pascal Duteil changes one of the sodium golden light bulbs on the Eiffel tower in Paris, France, May 5, 2015. A campaign to change and clean the 425 golden light bulbs starts today and is done every four years. (Photo by Philippe Wojazer/Reuters)

Technician Davd Kalic changes one of the sodium golden light bulbs on the Eiffel tower in Paris, France, May 5, 2015. (Photo by Philippe Wojazer/Reuters)

Technician David Kalic (L) and colleagues clean and change some of the sodium golden light bulbs on the Eiffel tower in Paris, France, May 5, 2015. (Photo by Philippe Wojazer/Reuters)

A demonstrator wears a head band that reads “The good school...really” during a protest against an education reform in Rome, Italy, May 5, 2015. (Photo by Tony Gentile/Reuters)

A protester wearing a t-shirt reading “Italian stallion” meditates as he sits cross-legged and barefooted on a window sill as other demonstrators are reflected in the window during a protest against the government's education reform, in Rome, Italy, May 5, 2015. (Photo by Alessandro Bianchi/Reuters)

Students protest against Italian government's “Good School” reform bill with their hand coloured with paint in front of the Democratic Party (PD) on May 5, 2015 in Rome. (Photo by Filippo Monteforte/AFP Photo)

A SpaceX worker stands near the unmanned SpaceX Crew Dragon as it sits on launch pad 40 before a Pad Abort Test at the Cape Canaveral Air Force Station in Cape Canaveral, Florida May 5, 2015. (Photo by Scott Audette/Reuters)

SpaceX's Dragon capsule launches, Wednesday, May 6, 2015, from Cape Canaveral, Fla. SpaceX fired the mock-up capsule to test the new, super-streamlined launch escape system for astronauts. (Photo by Red Huber/AP Photo/Orlando Sentinel)

SpaceX's Dragon capsule launches, Wednesday, May 6, 2015, from Cape Canaveral, Fla. SpaceX fired the mock-up capsule to test the new, super-streamlined launch escape system for astronauts. (Photo by Red Huber/AP Photo/Orlando Sentinel)

An elderly man dances with a girl dressed in a military uniform during a street performance to commemorate veterans of World War Two ahead of Victory Day in the centre of Russia's Siberian city of Krasnoyarsk, Russia May 5, 2015. Russia will celebrate the 70th anniversary of the victory over Nazi Germany in World War Two on May 9. (Photo by Ilya Naymushin/Reuters)

Owner of Guantanamera Cigars, Jose Montagne lights up a cigar as he poses for a photo in his store on the famed Calle Ocho (Eighth Street) in the Little Havana section of Miami, April 16, 2015. Montagne is one of more than a dozen cigar makers in the United States that Cuba's renowned state-owned tobacco company has tried to block from using names referring to the Communist-run island. (Photo by Carlo Allegri/Reuters)

A box of Guantanamera Cigars is pictured in Jose Montagne's store on the famed Calle Ocho (Eighth Street) in the Little Havana section of Miami, April 16, 2015. (Photo by Carlo Allegri/Reuters)

A box of Guantanamera Cigars is pictured in Jose Montagne's store on the famed Calle Ocho (Eighth Street) in the Little Havana section of Miami, April 16, 2015. (Photo by Carlo Allegri/Reuters)

Kim Kardashian poses with her book “Selfish” before a book signing at Barnes & Noble in New York May 5, 2015. (Photo by Shannon Stapleton/Reuters)

People look at photos on the “We have won!” memorial panel in Stavropol, Russia May 5, 2015. The panel shows the famous Soviet picture “Flag above the Reichstag” made from 4,222 portraits of defenders of their Motherland during the World War II from Stavropol, local media reported. (Photo by Eduard Korniyenko/Reuters)

China's Contemporary Dragon Kungfu Company dancers with the show “Gateway” perform in Riga, Latvia, May 5, 2015. (Photo by Ints Kalnins/Reuters)

China's Contemporary Dragon Kungfu Company dancers with the show “Gateway” perform in Riga, Latvia, May 5, 2015. (Photo by Ints Kalnins/Reuters)

China's Contemporary Dragon Kungfu Company dancers with the show “Gateway” perform in Riga, Latvia, May 5, 2015. (Photo by Ints Kalnins/Reuters)

A cast member of the show “Amaluna” by Canada's Cirque Du Soleil performs during a dress rehearsal in Madrid, Spain, May 5, 2015. (Photo by Susana Vera/Reuters)

Ash rises over Turrialba volcano, as seen from San Gerardo de Irazu, May 5, 2015. Vegetable growers in the highlands of Cartago and Turrialba are concerned that if the Turrialba volcano ash continue falling on their fields the losses would be significant, according to local media. The Turrialba volcano began erupting Monday afternoon, spewing thick black clouds of ash more than 8,200 feet (2,500 meters) into the sky. (Photo by Juan Carlos Ulate/Reuters)

A palace guard beats a drum during a change of guards ceremony in Gyeongbokgung Palace in Seoul, May 6, 2015. (Photo by Thomas Peter/Reuters)

Japan's Kumiko Seeser Ikehara (L) punches her compatriot Kayoko Ebata during their WBO women's minimumweight boxing title bout in Tokyo May 6, 2015. (Photo by Toru Hanai/Reuters)

Japan's Kumiko Seeser Ikehara reacts after defeating her compatriot Kayoko Ebata in their WBO women's minimumweight boxing title bout in Tokyo May 6, 2015. (Photo by Toru Hanai/Reuters)

A model holds the “Sunrise Ruby” (R) a Burmese ruby weighing 25.59 carats, and the “Historic Pink Diamond”, a Fancy Vivid diamond weighing 8.72 carats during an auction preview at Sotheby's auction house in Geneva, Switzerland, May 6, 2015. The ruby is expected to sell between US $ 12,000,000 to 18,000,000 and the diamond US $ 14,000,000 to 18,000,000 when they are auctioned on May 12 in Geneva. (Photo by Denis Balibouse/Reuters)

A woman paddles in a makeshift boat as she collects recyclable trash from a polluted river in Navotas city, Philippines May 6, 2015. (Photo by Ezra Acayan/Reuters)

Workers fix a banner showing an image of former Soviet leader Joseph Stalin during preparations for Victory Day outside Stavropol, Russia, May 6, 2015. Russia will celebrate the 70th anniversary of the victory over Nazi Germany in World War Two on May 9. The banner reads “We remember (you)! We are proud (of you)!”. (Photo by Eduard Korniyenko/Reuters)

The Villarrica Volcano is seen at night in Pucon town, Chile May 5, 2015. Picture taken May 5, 2015. (Photo by Cristobal Saavedra/Reuters)

Belgium's King Philippe gives a salute while Queen Mathilde and Princess Elisabeth (foreground, L-R) wait during the launching of the new Belgian navy patrol ship P902 Pollux in Zeebrugge May 6, 2015. Princess Elisabeth accepted a request to become the godmother of the vessel. (Photo by Yves Herman/Reuters)

An ultra-Orthodox Jewish boy stands on a pile of wood to be burnt later as part of celebrations for the Jewish holiday of Lag Ba'Omer in Ashdod May 6, 2015. The holiday, which marks the end of a plague in the Middle Ages that killed thousands of disciples of a revered rabbi in the holy land, is celebrated by lighting bonfires across the country. (Photo by Amir Cohen/Reuters)

Ultra-Orthodox Jews stand around a bonfire as they celebrate the Jewish holiday of Lag Ba'Omer in Ashdod May 6, 2015. (Photo by Amir Cohen/Reuters)

Ultra-Orthodox Jewish children hold cardboard in front of their faces as they watch bonfires during celebrations for the Jewish holiday of Lag Ba'Omer in Bnei Brak May 6, 2015. (Photo by Baz Ratner/Reuters)

A field of dead almond trees is seen in Coalinga in the Central Valley, California, United States May 6, 2015. Almonds, a major component of farming in California, use up some 10 percent of the state's water reserves according to some estimates. California ranks as the top farm state by annual value of agricultural products, most of which are produced in the Central Valley, the vast, fertile region stretching 450 miles (720 km) north-sound from Redding to Bakersfield. California water regulators on Tuesday adopted the state's first rules for mandatory cutbacks in urban water use as the region's catastrophic drought enters its fourth year. Urban users will be hardest hit, even though they account for only 20 percent of state water consumption, while the state's massive agricultural sector, which the Public Policy Institute of California says uses 80 percent of human-related consumption, has been exempted. (Photo by Lucy Nicholson/Reuters)

Freshwater carp come to the surface looking for food in the shallow waters of Lake Mead in Nevada May 6, 2015. A prolonged drought in the Western United States has drastically affected the level of the lakes water. (Photo by Mike Blake/Reuters)

The depleted water level caused by a prolonged drought in the Western United States can be seen on Lake Mead in Nevada May 6, 2015. (Photo by Mike Blake/Reuters)

An Indonesian woman holds a mirror as she tries on new sunglasses at a stall at Tanah Abang weekly market in Jakarta, May 7, 2015. (Photo by Reuters/Beawiharta)

An Indonesian Muslim woman holds a bottle of water as she takes a break during shopping at Tanah Abang weekly Muslim market in Jakarta, May 7, 2015. (Photo by Reuters/Beawiharta)

From L: US astronaut Kjell Lindgren, Russian cosmonaut Oleg Kononenko and Japanese astronaut Kimiya Yui pose for pictures as they attend a preflight training session at the Gagarin Cosmonauts' Training Centre in Star City, outside Moscow, on May 7, 2015. The crew is scheduled to blast off to the ISS from Baikonur at the end of May. (Photo by AFP Photo/Stringer)

Cosmonaut Oleg Kononenko of the Russian Federal Space Agency (Roscosmos) attends a training examination at the Gagarin cosmonaut training centre outside Moscow, Russia, May 7, 2015. (Photo by Maxim Shemetov/Reuters)