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

Which team lost the 2009 Superbowl to the Pittsburgh Steelers?
super bowl xliii

What did Edwin Land invent because of his daughters' wish for instant and 'snappy' results?
edwin h. land

Who wrote the book 'About A Boy' which was later turned into a successful film starring Hugh Grant?
about a boy