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.

My father tried to drive the trailer into the garage but he couldn't, because the _ was too short.
garage

The collar fit perfectly on the neck of the dog but it could still not pass through the door of its cage. The _ is small.
door

The man worked for hours to clean the carpet with his vacuum, but the _ didn't work.

vacuum