Remember how to apply the theorem of Pythagoras? What about coffee's chemical formula? Or Armenia's capital city? All those and more, I used to know. It is a keyword here that is very important. All I recall now is that it must be a triangle with Pythagoras 'theorem.
There is certainly a beehive-like structure in the chemical coffee formula, but I don't know the exact shape or the elements that produce it. I am sure it's a very pleasant city in or close to the Caucasus Mountains, but I can't name it. As for the capital of Armenia.
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