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.

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

A: block
****
Q: Jenna added chlorine gradually to her pool, because she wanted to make sure that the _ was making it cleaner.

A: chlorine
****
Q: The grumpy man liked to sit alone at the house rather than be with others in the diner because everyone was happy at the _ .

A:
diner
****