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: International trade is a ____ way street.
Example Output: two

Example Input: Zygospores result from the fusion of ____ similar hyphal elements.
Example Output: two

Example Input: Flowers are usually bisexual and have ____ petals but have sepals that mimic petals.
Example Output:
no