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\*.

Q: who sang forevermore in beauty and the beast

A: Dan Stevens
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Q: when did 'open era' began in tennis

A: 1968
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Q: piaget's second of four stages of cognition is

A:
the pre-operational stage
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