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: The bike manufacturer switched its fabrication from steel to aluminium frames because the _ was lighter.
Example Output: aluminium

Example Input: The women used a ball instead of going to a class for her workout. The _ was very bouncy.
Example Output: ball

Example Input: James found inspiration from the forest and books at the library because he liked to be in a _ while it was rainy.
Example Output:
library