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

Input: Consider Input: Nuclear envelopes form around the _ new nuclei.

Output: two


Input: Consider Input: Females reach sexual maturity around four to _ year-olds.

Output: five


Input: Consider Input: Some endocrinologists believe that _ in four women have an underactive or overactive thyroid.


Output: one