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:
Chromatography is unique because of ____ reasons.

Ex Output:
three


Ex Input:
Some nurseries only take children aged ____ years and over.

Ex Output:
two


Ex Input:
Spinner dolphins are six to seven feet long and have a ____ part color pattern on their bodies.

Ex Output:

three