Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
One example is below.
Q: Who was the first American President?
A: president of the united states
Rationale: The question talks about the president of the USA.
Q: August 29, 1958 saw the birth of what moderately famous pop star, who married Lisa Marie Presley in 1994, Deborah Jeanne Rowe in 1996, and had a child with a yet unnamed surrogate mother in 2002?
A:
debbie rowe