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:
Animals exhibit ____ patterns for bringing sperm and eggs together.

Ex Output:
two


Ex Input:
Alcohol content is ____ to three times more than beer.

Ex Output:
two


Ex Input:
Many veterinarians now sterilize dogs and cats as young as ____ weeks of age.

Ex Output:

eight