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: Black widows mature in two to ____ months.
Example Output: four

Example Input: Sexual maturity is reached within ____ to four years.
Example Output: two

Example Input: Basting is the stitching used to hold the ____ layers of fabric together while quilting.
Example Output:
three