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: Infected rodents carry and secrete the virus for about ____ days.
Example Output: seven

Example Input: Most bioluminescence is blue for ____ reasons.
Example Output: two

Example Input: Arbitration is a process where one or ____ arbitrators make a decision about the case.
Example Output:
three