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:
Fuzzy logic is an attempt to combine the ____ techniques.

Ex Output:
two


Ex Input:
Alcohol content is ____ to three times more than beer.

Ex Output:
two


Ex Input:
Korean names are usually ____ syllables long, with the surname preceding given names.

Ex Output:

three