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: Substance abusers have ____ hundred percent higher medical costs and benefits.
Example Output: three

Example Input: Most amphibians reach maturity at three or ____ years.
Example Output: four

Example Input: Most spiders have ____ eyes, but the brown recluse has six eyes arranged in a distinctive pattern.
Example Output:
eight