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

Ex Input:
Dingoes live to _ or six years of age in the wild and fifteen years in captivity.

Ex Output:
five


Ex Input:
Older caterpillars have _ different color forms.

Ex Output:
two


Ex Input:
Mosquitoes have _ distinctive life stages, with the first three stages being spent in the water.

Ex Output:

four