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: Dicots are plants that have ____ cotyledons.

Output: two


Input: Consider Input: Stereo cameras track the fly's movement in ____ dimensions.

Output: three


Input: Consider Input: Natural iridium contains ____ isotopes.


Output: two