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

Example Input: Reds mature well for six to _ years.
Example Output: eight

Example Input: Most cats have only _ to five toes per paw, depending on whether it is the front or back paw.
Example Output: four

Example Input: Plants are _ feet apart with ten feet between rows.
Example Output:
four