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 mother attended the baby's baptism while the father stayed home, since _ 's presence was optional for the ritual.
Example Output: father

Example Input: The weightlifter felt a lot more tough when working with barbells than with kettlebells, because the _ worked more complex muscle groups.
Example Output: barbells

Example Input: When going through the metal detector, James took off his jewelry but not his tie. The _ was unacceptable.
Example Output:
jewelry