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: His legs got stronger from pulling the sled instead of pushing the block, although _ was heavier in weight.
Example Output: block

Example Input: George opted for both of them to use a knife instead of a gun in the duel because the _ could mortally injure them.
Example Output: gun

Example Input: The email was rude but the letter was not. This is because the _ was much more personal.
Example Output:
letter