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

Example Input: Interstate commerce is commerce conducted in at least _ states.
Example Output: two

Example Input: Pollination is accomplished only by insect-agency, and where insects fail _ fruits are ripened.
Example Output: no

Example Input: Poverty is especially prevalent among rural minorities, who number one if _ of rural students.
Example Output:
four