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.

[EX Q]: We removed our dirty shoes on entering the kitchen, but put them back on in the den, because in the _ a clean floor was required.
[EX A]: kitchen

[EX Q]: Sally needed to get a new pot to plant her ficus tree, because the _ was growing fast.
[EX A]: tree

[EX Q]: John got his shirt stained when he rubbed in on the wall because he believed it had been painted for long like the window but the _ alone is sticky.
[EX A]:
wall