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

Ex Input:
Albino barbs are a light yellow with _ barely visible stripes.

Ex Output:
four


Ex Input:
English peas are about _ feet high and blooming.

Ex Output:
two


Ex Input:
Water scorpions regulate their depth using _ pairs of special sensors on their bellies.

Ex Output:

three