People walk past a man preaching along a train track in Ikeja district in Nigeria's commercial capital Lagos April 12, 2016. (Photo by Akintunde Akinleye/Reuters)

An Ultra-Orthodox Jewish man uses a stick to to separate the wheat grains in the Ultra-orthodox moshav of Komemiyut May 3, 2016. The harvested wheat will later be used to make the traditional unleavened bread eaten during the Jewish holiday of Passover. (Photo by Amir Cohen/Reuters)

A man gestures to a robot at a restaurant in Hefei, Anhui province, December 26, 2014. The restaurant, with a space of 1300 square metres and a total of 30 robots to cook meals, deliver dishes and welcome costumers, was reported to be the biggest robot restaurant in China. (Photo by Reuters/Stringer)

A man with a painted face and traditional costumes takes part in the Schleicherlaufen festival in the western Austrian town of Telfs February 1, 2015. (Photo by Dominic Ebenbichler/Reuters)

A man is silhouetted in front of the Allianz-Arena as he walks his dogs at sunrise in Munich, southern Germany, Friday, April 10, 2015. (Photo by Peter Kneffel/AP Photo/DPA)

A man lies in the sea grass at a beach on July 18, 2016 in Qingdao, Shandong Province of China. The enteromorpha prolifera spread on the beaches in Qingdao and were under clearing. (Photo by VCG/VCG via Getty Images)

A woman talks to a man as two children play inside a wrecked car at a camp for displaced people in Port-au-Prince, Haiti, March 6, 2016. (Photo by Andres Martinez Casares/Reuters)

A man stands near bodies of his young relatives after an airstrike in the rebel held Douma neighbourhood of Damascus, Syria August 22, 2016. (Photo by Bassam Khabieh/Reuters)