Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

Ex Input:
Naiads have ____ caudal filaments and external gills.

Ex Output:
two


Ex Input:
Bees normally live for about thirty days, but infected bees survive for only ____ to five days.

Ex Output:
three


Ex Input:
Constipation means that a person has ____ bowel movements or fewer in a week.

Ex Output:

three