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

Ex Input:
Some women have _ or more children by different men.

Ex Output:
five


Ex Input:
Metals often crystallize in a _ dimensional version of the hexagonal closest packed structure.

Ex Output:
three


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

Ex Output:

five