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: Females become sexually mature at the age of ____ years.
Example Output: five

Example Input: Multiplications are always ____ complemental.
Example Output: two

Example Input: Some hygienists work for ____ or more dentists.
Example Output:
two