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: Sexual maturity is reached within ____ to four years.
Example Output: two

Example Input: Carpenter ants can easily drop to a structure from tree limbs as high as ____ feet above the roof.
Example Output: five

Example Input: Many luminous shrimps are known but ____ luminous crabs .
Example Output:
no