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

Input: Consider Input: People are born with _ kidneys.

Output: two


Input: Consider Input: Tomatoes require about six to _ weeks from seeding until they reach transplant size.

Output: eight


Input: Consider Input: Monsoons coming every three to _ years can add almost a foot of water to the mountain's surface.


Output: seven