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

Example Input: Female cats can go into heat for the first time as early as _ months of age.
Example Output: five

Example Input: Planaria has rudimentary eyes which produce _ images but detect direction.
Example Output: no

Example Input: Homosexuals face _ difficulties in enjoying public benefits and employment.
Example Output:
no