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:
Raindrops produce ____ types of sound underwater.

Ex Output:
two


Ex Input:
Jersey has nine breeding seabird species, of which ____ nest on the north coast.

Ex Output:
seven


Ex Input:
Flash flooding occurs within ____ hours of a rain event.

Ex Output:

six