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]: Who does stefan end up with vampire diaries?
[EX A]: Caroline Forbes

[EX Q]: Journal of optics a pure and applied optics abbreviation?
[EX A]: J. Opt.

[EX Q]: Lamar hunt s dallas texans football team would eventually become the?
[EX A]:
Kansas City Chiefs