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:
Cardiovascular disease is the cause of more deaths than the next ____ causes of death combined.

Ex Output:
seven


Ex Input:
Infertility affects one in ____ couples today.

Ex Output:
five


Ex Input:
Gymnosperms produce ____ types of spores, microspores and megaspores.

Ex Output:

two