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

Example Input: Infertility affects one in _ couples and affects both men and women.
Example Output: seven

Example Input: Sturgeons are shark-like in form but are unique in having _ rows of bony plates along the body.
Example Output: five

Example Input: Most portable extinguishers discharge completely in as few as _ seconds.
Example Output:
eight