instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
The Battle of Poltava in 1709 was a victory by Peter the Great over which state?
answer:
battle of poltava

question:
Come Clean was the debut album by which 2000s band?
answer:
come clean

question:
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?
answer:
debbie rowe