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]: the sun belt conference is a group of college sports teams that play each other on the ncaa division i level.
[A]: sun belt conference


[Q]: "if i never see your face again" is the fourth single by maroon 5.
[A]: if i never see your face again


[Q]: a video projector takes a video signal and projects the corresponding image on a screen using a lens system.
[A]:
video projector