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

Example Input: Bull sharks are a 'requiem' species, reaching up to _ feet in length.
Example Output: ten

Example Input: Most intestinal worms take _ to four weeks for maturation from their larval stages into adults.
Example Output: three

Example Input: Mosquitoes live _ to eight weeks.
Example Output:
four