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: Kittens take solid food within ____ months.

Output: two


Input: Consider Input: Echinoderms have radial symmetry , many having ____ or multiples of five arms.

Output: five


Input: Consider Input: Lizards are ____ legged animals with a long tail.


Output: four