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:
Nests Have at least one nest for every three to ____ hens.

Ex Output:
four


Ex Input:
American women are four to ____ times more likely than Asian women to die of breast cancer.

Ex Output:
seven


Ex Input:
Blood pressure is the result of ____ forces.

Ex Output:

two