In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.
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Question: how many times have ajax won the european cup

Answer: four


Question: when was it discovered that lead was poisonous

Answer: at least 2000 BC


Question: when does pirates of the caribbean 5 come out

Answer:
2017