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: Most cats have five toes on each front paw, but only ____ toes on each back paw.
Example Output: four

Example Input: Nymphs go through ____ instars and a pupa stage before reaching adulthood.
Example Output: three

Example Input: Light breeds starrt to lay at about ____ months and the heavier breeds at about six months.
Example Output:
five