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

Example Input: Terrorism is a problem which has troubled the international community for more than _ decades.
Example Output: three

Example Input: Screws provide at least _ times the holding power of nails.
Example Output: seven

Example Input: Most people buy a new car every _ to ten years depending on their income and needs.
Example Output:
three