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: Girls have ____ ovaries.

Output: two


Input: Consider Input: Crustaceans have ____ pairs of antennae.

Output: two


Input: Consider Input: Maps represent our ____ dimensional world in two dimensions.


Output: three