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: Calves are born after a gestation of ____ months.

Output: nine


Input: Consider Input: Numbers can be positive or ____ only.

Output: zero


Input: Consider Input: Sound waves travel up to ____ times faster through water than through air.


Output: five