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 engineer created robots to replace the algorithms at solving the puzzle. The _ were more advanced.
Example Output: robots

Example Input: Alexa was trying to dry their hair and started using ObjectX instead of ObjectY because _ was worse for their hair.
Example Output: ObjectY

Example Input: Carrie posted their sofa for sale on Craigslist, and had received an offer they had to decline because the _ is low.
Example Output:
offer