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: Some botanists recognise ____ botanical varieties.
Example Output: two

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

Example Input: Space consists of ____ dimensions, each of which is equally important and occupies all space.
Example Output:
three