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: Beryllium is found in a variety of countries on ____ continents.
Example Output: five

Example Input: Plants grow up to ____ feet tall and spread to about three feet.
Example Output: three

Example Input: Oceans make up over ____ thirds of the Earth's surface.
Example Output:
two