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This is a problem you seem to have, using words to mean things they don't mean. To the rest of us, you end up making as much sense as Lewis Carroll's Humpty Dumpty.
Apropos of the current issue, tannins are water soluble, while resins are not. That is why they are a problem with oak, because water content in the wood (or humidity in the air) can dissolve them and allow them to react with iron.
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