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: Many prosimians have at least _ nipples and produce litters rather than a single offspring.

Output: four


Input: Consider Input: Nymphs pass through four to _ moults before reaching adulthood.


Output: five