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

Example Input: Marsupials have ____ vaginas and a double uterus.
Example Output: two

Example Input: Coho usually live for ____ years and grow rapidly in their final year.
Example Output:
three