instruction:
In this task, you are given a sentence with a missing word that can be an object, a person, and/or an action. Fill in the blank with a plausible word. Although each sentence has many correct answers, you only have to write one answer.
question:
PersonX fills PersonX's ___ with air
answer:
mattress


question:
PersonX fights every ___
answer:
bird


question:
PersonX acknowledges gratefully the ___
answer:

contract