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: Cognitive therapy is a time-limited treatment lasting ____ to four months.
Example Output: three

Example Input: Cichlids are popular in the aquarium hobby for a ____ reason.
Example Output: four

Example Input: All insects have ____ body sections, the head , thorax , and abdomen.
Example Output:
three