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: Rattlesnakes breed only every ____ to three years.
Example Output: two

Example Input: Most soils have ____ major horizons.
Example Output: five

Example Input: Water covers ____ thirds of the planet's surface.
Example Output:
two