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: Collages can have two or ____ layers.

Output: three


Input: Consider Input: Female dogs come into heat every ____ months or so.

Output: six


Input: Consider Input: Scorpions have ____ body regions, the cephalothorax and the abdomen.


Output: two