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:
The case James used to carry the file still got more space in it. I wonder why he chose the _ that is big.
answer:
case


question:
The computer was stumped by the algorithm but solved the equation with ease, as the _ was so complex.
answer:
algorithm


question:
My mom didn't know what food we wanted to eat more, hamburgers or chips. She thought the _ would be more difficult to make.
answer:

hamburgers