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:
Crustaceans have ____ pairs of antennae.

Ex Output:
two


Ex Input:
Most soils have ____ major horizons.

Ex Output:
five


Ex Input:
Anarchist organisations are now to be found on all ____ continents.

Ex Output:

five