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: Acupuncture needles are about two to ____ inches long.
Example Output: three

Example Input: Salsa works on the basis of Mambo - a pattern of ____ steps danced over eight counts of music.
Example Output: six

Example Input: Triglycerides contain ____ fatty acid molecules and one glycerol molecule.
Example Output:
three