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: Cardiovascular disease is the cause of more deaths than the next ____ causes of death combined.
Example Output: seven

Example Input: Ozone leaves ____ by-products except pure oxygen.
Example Output: no

Example Input: Infertility affects about one in ____ couples of child-bearing age.
Example Output:
six