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

Input: Consider Input: Plants grow to _ feet tall with feathery, smoky purple foliage.

Output: four


Input: Consider Input: Mares generally give birth to one young every _ years.

Output: three


Input: Consider Input: Most babies outgrow colic by the time they are three or _ months old.


Output: four