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: Mature females bear two or even ____ calves a year.

Output: three


Input: Consider Input: Girls have ____ ovaries.

Output: two


Input: Consider Input: Coursers have ____ toes, longer bills, short, broad wings and tails, and long legs.


Output: three