It's a lot simpler if you limit yourself to the four humours, since then you can simplify the problem by only having to reason about the behavior of the Teenage Mutant Ninja Turtles. They each correspond to one of the humours, they all live in a hole in the ground, and I'll leave it to you to draw the obvious conclusion.
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you've dug yourself a big hole now comrade
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It's a lot simpler if you limit yourself to the four humours, since then you can simplify the problem by only having to reason about the behavior of the Teenage Mutant Ninja Turtles. They each correspond to one of the humours, they all live in a hole in the ground, and I'll leave it to you to draw the obvious conclusion.