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]: The hand of the little girl could not reach the top of she shelf because the _ is too tall.
[A]: shelf


[Q]: I decided to take the lift and not the escalator because the _ looked dirtier.
[A]: escalator


[Q]: The sac has more space for one more basketball. The _ is a big one.
[A]:
sac