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: Human malaria is caused by ____ species of Plasmodium . .
Example Output: four

Example Input: Some women experience a labor of three to ____ days.
Example Output: five

Example Input: Tusks grow up to ____ inches a year and continue growing throughout the elephants' lifetime.
Example Output:
seven