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

Input: Consider Input: Most children overcome bed wetting between the ages of _ and ten.

Output: six


Input: Consider Input: Triaxial fabric is woven with _ sets of yarn whose intersections form equilateral triangles.

Output: three


Input: Consider Input: Friction occurs when _ objects rub together.


Output: two