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: Success is a function of ____ things.
Example Output: two

Example Input: Pertussis is highly contagious with symptoms that can linger ____ to ten weeks.
Example Output: six

Example Input: Mammals have ____ sets of teeth, milk and permanent.
Example Output:
two