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: Box turtles are mature and capable of mating at ____ years old.
Example Output: five

Example Input: Poodles come in ____ poodle sizes and shapes.
Example Output: three

Example Input: Box turtles are mature and capable of mating at ____ years old.
Example Output:
five