Question: Coverage of which international situation from 2015 earned the Pulitzer prize for the photojournalist Sergey Ponomarev?
Sentence (from "Sergey Ponomarev (photographer)"): Sergey Igorevich Ponomarev (Russian: Сергей Игоревич Пономарёв , 11 December 1980, Moscow) is a Russian photographer.
Relevant evidence: Yes