You need to answer a given question containing a blank (_). Your answer must be one of the two objects mentioned in the question, for example "trophy" and "suitcase". Your answer must not contain a word that is not present in the question. Please don't use articles (e.g., the, a) before the answer.

Q: He could either build the birdhouse or the tree-house first, but the _ would take less time to construct.

A: birdhouse
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Q: Mark changed from toe shoes to leather shoes before going to the date with his girl friend because the _ are dressy.

A: leather shoes
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Q: The new socks that he bought for winter did not fit into his shoes, because the _ were too thick.

A:
socks
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