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: Significant power is observed in the magnetic field oscillations with periods of ____ minutes.
Example Output: five

Example Input: Greed is covetousness, with covetousness being a foundation stone in all of the ____ deadly sins.
Example Output: seven

Example Input: Infants can follow back and forth motions as early as ____ days after birth.
Example Output:
three