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

Q: Which band had a hit with the song 'Brown Girl in the Ring'?

A: brown girl in the ring
****
Q: In 1981, in a move that met with considerable controversy, the Agriculture Department in the US proposed classifying pickle relish and what other condiment as vegetables in order to save money on school lunch programs?

A: condiment
****
Q: Mark Zuckerberg, Eduardo Saverin, Dustin Moskovitz and Chris Hughes developed what online computer application?

A:
chris hughes
****