Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Input: Consider Input: Who wrote the poem Elegy Written in a Country Churchyard?

Output: elegy written in a country churchyard

Input: Consider Input: What are Proxima Centauri, Sirius A, Pollux, Arcturus and Betelgeuse?

Output: arcturus

Input: Consider Input: Who released Diva in 2009?
Output: diva