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

Ex Input:
Rodents have _ toes on their front feet and five on the hind feet.

Ex Output:
four


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

Ex Output:
four


Ex Input:
Some dads can handle _ or three children.

Ex Output:

two