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:
Hyacinths have a wingspan reaching nearly ____ feet.

Ex Output:
four


Ex Input:
Echinoderms have radial symmetry , many having ____ or multiples of five arms.

Ex Output:
five


Ex Input:
Doctors use ____ blood tests to measure the amount of iron in the body.

Ex Output:

three