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: Some countries require passports to be valid for ____ months after expiry of the visa.

Output: six


Input: Consider Input: Humans have two lungs, each fed by ____ bronchus.

Output: one


Input: Consider Input: Adult deer stand about ____ feet tall from the ground to shoulder.


Output: three