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]: Most goals in all competitions in premier league?
[EX A]: Alan Shearer

[EX Q]: What's the zip code for o'fallon missouri?
[EX A]: 63366, 63368

[EX Q]: What theory is used to explain the behavior of particles in gases?
[EX A]:
kinetic theory of gases