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: Nymphs are less than ____ millimeters in size.
Example Output: two

Example Input: Rabbits can live to be around ____ years old or older.
Example Output: ten

Example Input: Fish have ____ different musculature systems for swimming.
Example Output:
two