instruction:
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.
question:
Danika prefers pots with plastic handles over metal handles, because the _ have worse heat resistance.
answer:
metal handles


question:
A boy in a house tries to put a big book on a shelf built for paperbacks. The book falls to the ground because the _ is too narrow.
answer:
shelf


question:
They tried to get the gum out of their jeans by putting it in the freezer, but the _ was too stuck.
answer:

gum