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:
Cesarean section are three to ____ times more likely for pregnant women with diabetes.

Ex Output:
four

Ex Input:
Most dens are oval shape, six to nine feet long and about ____ feet in height and width.

Ex Output:
six

Ex Input:
Carbon dioxide extinguishes fire by physically attacking all ____ points of the fire triangle.

Ex Output:
three