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 cold air inundated the shack but the house remained warm, as the _ 's windows remained closed .
[A]: house


[Q]: I used a battery to take pictures with the camera and put them in an album until the _ needed charging.
[A]: battery


[Q]: Billy wanted to prevent having his radiator overheat in the desert sun so he added water but the _ was too much.
[A]:
sun