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

Example Input: Ospreys reach sexual maturity between _ and five years of age.
Example Output: three

Example Input: Cockroaches require food every _ to ten days but mut take in water every ten days.
Example Output: seven

Example Input: Perennials can take three or _ years to reach a mature size.
Example Output:
four