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]: waiting for guffman is a musical mockumentary movie made in 1997.
[EX A]: waiting for guffman

[EX Q]: giorgio chiellini (born 14 august 1984) is an italian football player.
[EX A]: giorgio chiellini

[EX Q]: the central collegiate hockey association (ccha) was a group of colleges and universities, mostly in the midwestern united states plus one in alaska, that played ncaa division i hockey against one another every season.
[EX A]:
central collegiate hockey association