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: The essay on DNA structures was read more than the one on Proteins, so the one on _ must be more dull.

Output: Proteins


Input: Consider Input: I'm just a novice skateboarder so I always wear pads and helmet. Smashed my knee tonight so its a good thing for the _ .

Output: pads


Input: Consider Input: The windows were replaced by doors to prevent wasting energy, since the _ were well insulated.


Output: doors