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.

[Q]: "little red corvette" is a pop/rock song by musician prince.
[A]: little red corvette


[Q]: the wrigley building (400-410 north michigan avenue, near north side, chicago, illinois) is a skyscraper in chicago.
[A]: wrigley building


[Q]: a raster image processor is a component that can be found in some printers.
[A]:
raster image processor