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 alternative antibiotics require ____ doses per day for ten days.
Example Output: three

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

Example Input: Tetrads come in ____ shapes.
Example Output:
seven