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

Ex Input:
Territorial groups consist of one supermale or terminal male and _ to three females.

Ex Output:
one


Ex Input:
Pancreatic juice is of _ types.

Ex Output:
two


Ex Input:
Tricyclic compounds are substances which contain _ carbon rings, probably six membered rings.

Ex Output:

three