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: Scientists divide the mosses into ____ groups .
Example Output: eight

Example Input: Most bacteria have one or ____ circular chromosomes.
Example Output: two

Example Input: Conversations overlap, especially when more than three people try to talk in ____ room.
Example Output:
one