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: Electric power means no gas or oil to spill, and ____ pollution in the air.

Output: no


Input: Consider Input: Corporate mergers occur when ____ companies combine.

Output: two


Input: Consider Input: Elephants replace their teeth four to ____ times in their lifetime.


Output: six