In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Input: Consider Input: Pets also track in pollen, and _ out of every ten people is allergic to cat or dog dander.

Output: one


Input: Consider Input: Some people have _ or four careers during their lives.

Output: three


Input: Consider Input: Psychiatrists categorize symptoms into _ categories.


Output: three