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.
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Question: Who does jeffrey dean morgan play in supernatural?

Answer: John Eric Winchester


Question: What flag has a blue triangle and red and white stripes?

Answer: Puerto Rico and Ohio


Question: The cultural blending of greek and roman culture came to be called?

Answer:
Greco-Roman culture