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 Input:
As the gas filled the room, most people opted for the mask instead of the bag since the _ was efficient.

Ex Output:
mask


Ex Input:
Sam and John couldn't agree on which part of the meal was more important: the food or the wine. Sam said the _ was more filling and satisfying.

Ex Output:
food


Ex Input:
He said to use the cellphone or the landline to call in an emergency, but the _ wasn't working.

Ex Output:

cellphone