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: Dogs have to be ____ months old before they are spayed or neutered.

Output: six


Input: Consider Input: Aboriginal society is divided into ____ complementary branches.

Output: two


Input: Consider Input: Most endocrinologists see patients every ____ months throughout the pregnancy.


Output: two