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: Sedge wrens are listed as endangered by all ____ states.
Example Output: three

Example Input: Steam distillation refers to the distillation of ____ immiscible liquids.
Example Output: two

Example Input: Free elements have ____ as an oxidation number.
Example Output:
zero