TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Written by Edgar Allen Poe and published in 1845, what poem repeats the famous line `nevermore`?

SOLUTION: edgar allan poe

PROBLEM:  'The Dream of Gerontius' is the 1900 work of which English composer?

SOLUTION: the dream of gerontius

PROBLEM: David Mitchell is married to which TV quiz presenter and journalist ?

SOLUTION:
david mitchell