A picture of Syria's President Bashar al-Assad is displayed on a damaged structure at the entrance of al-Dukhaneya neighbourhood near Damascus, as civilians carry their belongings recovered from their homes after soldiers loyal to Syria's President Bashar al-Assad regained control of the area from rebel fighters, in this October 7, 2014 file photo. (Photo by Omar Sanadiki/Reuters)

Palestinian policemen stand near burning tyres set ablaze by demonstrators outside Jalazoun refugee camp near the West Bank city of Ramallah, in this January 12, 2014 file photo. (Photo by Mohamad Torokman/Reuters)

Russia's President Vladimir Putin (R) shakes hands with Formula One commercial supremo Bernie Ecclestone during the first Russian Grand Prix in Sochi, in this October 12, 2014 file photo. (Photo by Alexei Nikolskyi/Reuters)

A seagull flies past the side of the cruise liner Costa Concordia during the “parbuckling” operation outside Giglio harbour, in this January 12, 2014 file photo. (Photo by Max Rossi/Reuters)

Chickens roost in the midst of plants covered with ash from Mount Sinabung near Sigarang-Garang village in Karo district, Indonesia's North Sumatra province, in this January 12, 2014 file photo. (Photo by Roni Bintang/Reuters)

Senior Syrian opposition member Haitham al-Maleh sits alone during the second session of the Geneva-2 peace conference in Montreux, in this January 22, 2014 file photo. (Photo by Jamal Saidi/Reuters)

Pro-European integration protesters take cover from water sprayed from a fire engine at the site of clashes with riot police in Kiev, in this January 23, 2014 file photo. (Photo by Vasily Fedosenko/Reuters)

Valerie Trierweiler, former companion of French President Francois Hollande, arrives at the international airport in Mumbai, in this January 27, 2014 file photo. (Photo by Danish Siddiqui/Reuters)

Health officers in full protective gear wait to cross a road near a wholesale poultry market in Hong Kong, in this January 28, 2014 file photo. (Photo by Tyrone Siu/Reuters)

A woman is assisted after she was injured by a tear gas canister shot by African Union (AU) soldiers to disperse a crowd near the district of Miskine in the capital Bangui, in this February 7, 2014 file photo. (Photo by Siegfried Modola/Reuters)

Actor Javier Camara, winner of the Best Leading Actor award, kisses the hand of actress Terele Pavez, who won the Best Supporting Actress award, during a family photo at the Spanish Film Academy's Goya Awards ceremony in Madrid, in this February 10, 2014 file photo. (Photo by Javier Barbancho/Reuters)

our out of five Olympic rings are seen lit up during the opening ceremony of the 2014 Sochi Winter Olympics, in this February 7, 2014 file photo. (Photo by David Gray/Reuters)

Shaun White of the U.S. crashes during the men's snowboard halfpipe final at the 2014 Sochi Winter Olympic Games, in Rosa Khutor, in this February 11, 2014 file photo. (Photo by Lucas Jackson/Reuters)

U.S. President Barack Obama greets a man wearing a horse mask during a walkabout in Denver in this July 8, 2014 file photo. (Photo by Kevin Lamarque/Reuters)

A cow is prepared for the Miss Milk Cow beauty contest in Moc Chau plateau, 200 km northwest of Hanoi in this October 15, 2014 file photo. (Photo by Reuters/Kham)

A participant in costume eats a sandwich after a Halloween parade in Kawasaki, south of Tokyo, in this October 26, 2014 file photo. (Photo by Yuya Shino/Reuters)

A volunteer pushes Switzerland's goaltender Sophie Anthamatten in a trolley as she leaves the Shayba Arena following a practice session ahead of the 2014 Sochi Winter Olympics, in this February 6, 2014 file photo. (Photo by Phil Noble/Reuters)

Japan's Yuzuru Hanyu reacts in the “kiss and cry” area during the Figure Skating Men's Short Program at the Sochi 2014 Winter Olympics, in this February 13, 2014 file photo. (Photo by Lucy Nicholson/Reuters)

Third-placed Italy's Christof Innerhofer (2nd R) does a somersault on the podium as winner Switzerland's Sandro Viletta (2nd L) and second-placed Croatia's Ivica Kostelic (L) laugh after the men's alpine skiing super combined event at the 2014 Sochi Winter Olympics at the Rosa Khutor Alpine Center in this February 14, 2014 file photo. (Photo by Stefano Rellandini/Reuters)

Race leader Astana team rider Vincenzo Nibali of Italy pushes away a spectator as he cycles to win the 145.5km 18th stage of the Tour de France cycling race between Pau and Hautacam, in this July 24, 2014 file photo. (Photo by Christian Hartmann/Reuters)

Participants climb over a wall at the “Tough Mudder” endurance event series in Arnsberg in this September 6, 2014 file photo. (Photo by Ina Fassbender/Reuters)

A female bodybuilder apples oil to another performer backstage before an amateur competition in the Israeli city of Dimona, in this April 3, 2014 file photo. (Photo by Finbarr O'Reilly/Reuters)

Jockey Samuel Cudjoe (1) runs his goat Bright Spark over the finish line to win the Class C2 Classic 100 metre race during the Carnbee/Mt Pleasant Community Council's 42nd annual sports meeting at the Mt Pleasant recreation ground, on Tobago island, in this April 21, 2014 file photo. (Photo by Andrea De Silva/Reuters)

Taiwan's Chang Wei-Lin competes during the men's 10,000m race walk at the 2014 Nanjing Youth Olympic Games in Nanjing, Jiangsu province, in this August 24, 2014 file photo. (Photo by Aly Song/Reuters)

A dog surfs at the 6th Annual Surf City surf dog contest in Huntington Beach, California in this September 28, 2014 file photo. (Photo by Lucy Nicholson/Reuters)