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

Ex Input:
Polymorphism occurs in all species and the mandibles bear _ teeth.

Ex Output:
four


Ex Input:
Least weasels breed one to _ times per year, depending on prey density.

Ex Output:
three


Ex Input:
Most melodic music is built around a basic structure of _ chords.

Ex Output:

three