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: Marsupials have ____ vaginas and a double uterus.
Example Output: two

Example Input: Traffic lights have ____ colors.
Example Output: three

Example Input: Dicots have ____ seed leaves inside the seed coat.
Example Output:
two