TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Feb 15, 1564 saw the birth of what famed Italian physicist, mathematician, astronomer, and philosopher, who discovered the first 4 moons of Jupiter?

SOLUTION: astronomer

PROBLEM: Kronos (or Cronus) was the Greek equivalent of which Roman god?

SOLUTION: cronus

PROBLEM: Which detective lived in Cabot Cove Maine?

SOLUTION:
murder, she wrote