Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.
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Question: the scrotum is the bag that holds the testicles (commonly called "balls") in male mammals.

Answer: scrotum

Question: ille-et-vilaine is a department found in the west of france in the brittany region.

Answer: ille-et-vilaine

Question: kimora lee simmons (born may 4, 1975) is an american fashion model.

Answer:
kimora lee simmons