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: Taiwanese law permits a jail term of up to ____ years for spreading computer viruses.
Example Output: three

Example Input: Most butterflies live only two to ____ weeks.
Example Output: four

Example Input: Rain poses ____ major possible dangers to a bird.
Example Output:
two