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: Elephants give birth to ____ calf every four to nine years on average.

Output: one


Input: Consider Input: Phoenix is a city where about one in ____ residents are from an emerging ethnic group.

Output: four


Input: Consider Input: Planaria has rudimentary eyes which produce ____ images but detect direction.


Output: no