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: Bullying is most severe in grades ____ to nine.
Example Output: seven

Example Input: Variable stars fall into ____ major physical classifications.
Example Output: four

Example Input: Planes are flat surfaces that extent infinitely in ____ directions.
Example Output:
two