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.

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

A: father
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Q: They thought it was okay to print the country pictures but not the city ones as they thought that the _ ones were lovely.

A: country
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Q: The doctor performed surgery with a knife instead of a blade, because the _ was able to do the task.

A:
knife
****