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.

Input: Consider Input: PersonX catches ___ on fire

Output: kindling


Input: Consider Input: PersonX reduces the ___ by reducing

Output: smoke


Input: Consider Input: PersonX lets ___ back


Output: cats