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.

Example Input: Dholes are highly social animals and live in packs of about ____ dogs.
Example Output: ten

Example Input: Acoustic instruments consist of ____ main parts neck, top, back and sides.
Example Output: four

Example Input: Herring gulls are good at producing all ____ eggs into flying birds.
Example Output:
three