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

Input: Consider Input: Dialogue is _ sides working together toward a common understanding.

Output: two

Input: Consider Input: Humans are bipeds who stand between _ to six feet in height when fully grown.

Output: five

Input: Consider Input: Cats have _ toes on each front paw, but only four toes on each back paw.
Output: five