Based on the given question and tppic, give an answer. The answer is available on on the internet. The questions are mostly centered around a single named entity.

concept: Sammy Hagar question: what does sammy hagar sing?
['Rock music', 'Hard rock', 'Heavy metal']

concept: Virgin America question: what type of aircraft does virgin america use?
['Airbus A319', 'Airbus A320']

concept: John Glenn question: what year did john glenn walk on the moon?
1976 Democratic National Convention