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:
Lions stand ____ feet tall at the shoulders.

Ex Output:
three


Ex Input:
Every oxygen links to one silica tetrahedron and ____ ferromagnesian octahedra.

Ex Output:

three