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:
Some adjectives have ____ forms, others have four.

Ex Output:
two


Ex Input:
Gloves have ____ ridges or crevices in which the bacteria can hide.

Ex Output:
no


Ex Input:
Willows do well on moist, well drained soils and tolerate flooding for up to ____ weeks a year.

Ex Output:

three