Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Ex Input:
Who composed Air on the G String?

Ex Output:
air on the g string

Ex Input:
Between 1958 and 1972 all Cliff Richard single records were released on which record label?

Ex Output:
cliff richard

Ex Input:
In the final of the Basketball competition at the 1972 Summer Olympics, the last 3 seconds of the game were ordered to be played again, which resulted in which team being awarded the gold medal?

Ex Output:
1972 summer olympics