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: Child care is provided for children ages six weeks through ____ years of age.
Example Output: four

Example Input: Compound objects have ____ representations themselves.
Example Output: no

Example Input: Many tortoises can retract their head, their ____ limbs and tail into the shell for protection.
Example Output:
four