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

Example Input: Written by Edgar Allen Poe and published in 1845, what poem repeats the famous line 'nevermore'?
Example Output: edgar allan poe

Example Input: Which evolutionary biologist wrote The Ancestor's Tale in 2004?
Example Output: the ancestor's tale

Example Input: What fictional Chinese-American detective, created by Earl Derr Biggers in 1923 for a novel published in 1925, was the subject of over 45 films made between 1926 and 1981?
Example Output:
earl derr biggers