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

[Q]: The Briish Airways subsidiary BA Connect was sold to which other airline?
[A]: airline

[Q]: Who was the first person to sign the American Declaration of Independence?
[A]: united states declaration of independence

[Q]: Name the paranoid android in the Hitchhikers Guide to the Galaxy series by Douglas Adams.?
[A]:
the hitchhiker's guide to the galaxy