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:
Spiders have only ____ body divisions and eight legs.

Ex Output:
two


Ex Input:
Elderberry supplements seem to have few risks when used daily for up to ____ days.

Ex Output:
five


Ex Input:
Mammals typically have ____ parathyroid glands, while other types of animals typically have six.

Ex Output:

four