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:
Violets usually have ____ sepals at the base and have five petals.

Ex Output:
five


Ex Input:
Most orthoptists work ____ hours a day, four or five days a week.

Ex Output:
eight


Ex Input:
Lizards have external ear openings, unlike snakes which have ____ openings at all.

Ex Output:

no