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

Input: Consider Input: Corms are undifferentiated, uniform, and contain _ rings when cut apart.

Output: no


Input: Consider Input: Most women have _ problems getting pregnant with a retroverted uterus.

Output: no


Input: Consider Input: Roots provide _ important functions for the plant.


Output: two