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

Input: Consider Input: Acrobats mount a single bicycle until _ people in all are stacked on top of it.

Output: ten


Input: Consider Input: Most children start to get their adult teeth at about _ years of age.

Output: six


Input: Consider Input: Volcanic islands move through _ stages of growth and erosion.


Output: eight