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

Chris Martin is the lead vocalist and rhythm guitarist with which group?
chris martin

With which other cricketer does James Anderson hold the England record for the most successful bowler/wicket keeper combination with 68 wickets?
cricket

What was the name of the character played by Alyson Hannigan in the TV series Buffy the Vampire Slayer?

alyson hannigan