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This is less of a story structure and more of a trope. (You can have very different story structures leading up to that final revelation.) Also, I don't know how many story structures actually have...
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#4: Attribution notice removed
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#3: Attribution notice added
Source: https://writers.stackexchange.com/a/20104 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
This is less of a story structure and more of a trope. (You can have very different story structures _leading up_ to that final revelation.) Also, I don't know how many story structures actually have established names :P Tropes don't always have established names either, but TV Tropes calls this ["It Was With You All Along"](http://tvtropes.org/pmwiki/pmwiki.php/Main/ItWasWithYouAllAlong).