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: Pigs grow very quickly and are normally ready for sale at ____ to six months of age.
Example Output: four

Example Input: Herbs require at least ____ hours of sunlight.
Example Output: six

Example Input: Proturans have small appendages ventral on the first ____ abdominal segments.
Example Output:
three