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

Example Input: Feb 15, 1564 saw the birth of what famed Italian physicist, mathematician, astronomer, and philosopher, who discovered the first 4 moons of Jupiter?
Example Output: astronomer

Example Input: Which former Blue Peter presenter died in April 2004, aged 41?
Example Output: blue peter

Example Input: In 1989 Carlo Petrini founded what?
Example Output:
carlo petrini