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.

[EX Q]: the viverridae is a family of small to medium-sized mammals, the viverrids.
[EX A]: viverridae

[EX Q]: odd future is a group of hip hop musicians from los angeles, united states.
[EX A]: odd future

[EX Q]: lee mcculloch (born 14 may 1978) is a scottish football player.
[EX A]:
lee mcculloch