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: Photons have momentum but ____ mass or electrical charge.

Output: no


Input: Consider Input: Elephants have five toes on the fore feet and ____ on the hind feet.

Output: four


Input: Consider Input: More women suffer from the disease than men in a ratio of ____ to one.


Output: five