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The words “include” and “unrelated” are not [selecting an option (from two alternatives)
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You would think the above illustration would be obvious.
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But the upper right is expressed as “B is A.”
- Then, we naturally come up with its negative form “B is not A”.
- I would consider this to be the top left state.
- Misinterpreted as almost MECE with the combination of “is” and “is not”
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In reality, “part of B is A and the rest is not A” happens
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