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

Input: Consider Input: Arthritis is the leading cause of disability in the state affecting about one in _ adults.

Output: three

Input: Consider Input: Autism is _ to four times more likely to affect boys than girls.

Output: three

Input: Consider Input: Diarrheal disease kills _ million children every year.
Output: three