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

Input: Consider Input: Oceanographers now understand the oceanic circulation much better than _ years ago.

Output: ten


Input: Consider Input: Muslim men can divorce by simply pronouncing triple talak and can have up to _ wives.

Output: four


Input: Consider Input: Most children go through _ stages in developing bladder control.


Output: three