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.

Input: Consider Input: Preston liked learning violin better than piano at music class, because the _ hurt his back.

Output: piano


Input: Consider Input: Jane needed the braces the dentist put on her teeth there because the _ are weak.

Output: teeth


Input: Consider Input: The man spent more time in the gym than at the park although he was training at the _ .


Output: park