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]: Wanting to be comfortable, the woman placed a pillow on the sofa because the _ was stiff.
[EX A]: sofa

[EX Q]: they had a pet tarantula that liked to climb the walls instead of the floor, because the _ were higher.
[EX A]: walls

[EX Q]: Norma preferred to take the test in the library instead of in the gymnasium, because the _ was much noisier.
[EX A]:
gymnasium