Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

Input: Consider Input: Women normally have ____ ovaries.

Output: two


Input: Consider Input: Hydroplanes have ____ or more wetted surface areas.

Output: two


Input: Consider Input: Wood burns in ____ stages.


Output: three