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.

Example Input: The pill made Griffin much more sleepy at bedtime than the tea, because the _ was potent.
Example Output: pill

Example Input: The drifter pulled out his harmonica while riding the train and played a tune over the _ noise.
Example Output: train

Example Input: The home was no longer habitable by humans after the heaters were added and the windows removed, as the _ made the place dangerous.
Example Output:
heaters