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]: The medical term for a superficial loss of skin as would occur by scratching is?
[EX A]: abrasion

[EX Q]: Where did the name molly come from for the drug?
[EX A]: short for 'molecule'

[EX Q]: Who did zac efron play in high school musical?
[EX A]:
Troy Bolton