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

Input: Consider Input: Cluster flies are covered with fine golden hairs and have _ stripes on the thorax.

Output: no


Input: Consider Input: Nymphs feed for five to _ weeks before entering the adult stage.

Output: eight


Input: Consider Input: Infertility affects about _ million American men.


Output: two