In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Input: Consider Input: Porcine insulin has _ different amino acid and bovine insulin has three different amino acids.

Output: one


Input: Consider Input: Ants display _ rather distinct patterns of nest establishment.

Output: two


Input: Consider Input: Ozone is a form of molecular oxygen that consists of _ oxygen atoms linked together.


Output: three