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

Input: Consider Input: Which horse won the 2008 Grand National?

Output: 2008 grand national

Input: Consider Input: Chris Difford and Glenn Tilbrook founded which band in 1974?

Output: chris difford

Input: Consider Input: What long running children's TV series, produced by The Children's Television Workshop, was first aired on Nov 10, 1969 and has broadcast 4212 shows to date?
Output: sesame workshop