In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

[EX Q]: What was the point of the skinner box?
[EX A]: perform studies in conditioning and training

[EX Q]: Who wrote let's spend the night together?
[EX A]: Mick Jagger and Keith Richards

[EX Q]: Who sang lean on me.in the 80's?
[EX A]:
Club Nouveau