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: Ocean has ____ life-important properties.
Example Output: two

Example Input: All orthodontists are dentists, but only about ____ percent of dentists are orthodontists.
Example Output: six

Example Input: Horses are creatures with ____ legs.
Example Output:
four