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.

[EX Q]: Ozone is formed of ____ atoms of oxygen.
[EX A]: three

[EX Q]: Parallel coordinates use ____ or more parallel axes.
[EX A]: two

[EX Q]: Decoction is made by using three ounces of the root to ____ quart of water, and boil.
[EX A]:
one