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

Ex Input:
Some barnacles can feed in _ modes.

Ex Output:
two


Ex Input:
Merlin is about five and _ half inches long.

Ex Output:
one


Ex Input:
Sturgeons are shark-like in form but are unique in having _ rows of bony plates along the body.

Ex Output:

five