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

Ex Input:
Most crops require at least _ to eight hours of full sun a day to thrive.

Ex Output:
six


Ex Input:
Osteoporosis is _ to four times more common in woman than men.

Ex Output:
three


Ex Input:
Most orchids require plenty of light, preferably at least _ hours a day.

Ex Output:

six