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.

[Q]: Who did the united states acquire texas from?
[A]: Mexico


[Q]: Who plays ricky in ricky nicky dicky and dawn?
[A]: Casey Simpson


[Q]: Who is the city of houston named after?
[A]:
General Sam Houston