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: Most psychologists agree that the big ____ personality traits are stable across the life-span.
Example Output: five

Example Input: Knee arthroscopy is used basically in ____ ways.
Example Output: three

Example Input: Modulation is the first of ____ efficiency related features unique to the linear compressor.
Example Output:
three