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: Women normally have ____ ovaries.
Example Output: two

Example Input: Biological islands are of ____ general types, geographical and ecological.
Example Output: two

Example Input: College students are ____ times more likely to become infected than healthy adults.
Example Output:
five