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]: Elaine took the painkillers that were in the medicine bottle for her back pain until the _ was empty.
[EX A]: bottle

[EX Q]: The egg from the farm tasted better than the milk from the store, because the _ was old.
[EX A]: milk

[EX Q]: The fortress was a poor location for their secret trap, so they set it in town.  Everything in the _ was visible.
[EX A]:
fortress