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

Input: Consider Input: Asbestos is the name applied to _ naturally occurring minerals that are mined from the earth.

Output: six


Input: Consider Input: Pangolins walk on all _ of their stout limbs, which are adapted for digging.

Output: four


Input: Consider Input: Adult silverfish live approximately _ years.


Output: three