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: Early childhood refers to the time period between birth and ____ years of age.
Example Output: eight

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

Example Input: Eagles have between ____ and three eggs per year.
Example Output:
one