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

Example Input: Who wrote the novels About A Boy, How To Be Good and High Fidelity?
Example Output: how to be good

Example Input: Which form of dementia is named after a German psychiatrist who first described it in 1906?
Example Output: dementia

Example Input: Which American invented the computer mouse whilst working at the Stamford Research Institute in 1964?
Example Output:
computer mouse