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

Input: Consider Input: Sea urchins have _ paired rows of tiny tube feet which are found amongst the spines.

Output: five


Input: Consider Input: Lantanas bloom in a dense head with individual tubular florets with four or _ lobes.

Output: five


Input: Consider Input: Pipelines transport crude oil to refineries, a process that takes _ days on average.


Output: ten