@Seth @Spiritual Mask Salesman
I completely consider TWW, PH, and ST a trilogy. We see the destruction of Ganon and Old Hyrule in TWW, we see Link and Tetra trying to find new land in PH, and in ST they have found that land and their descendants need to defeat the evil there to make New Hyrule a safe place to live.
I also consider ALttP/OoX/LA/ALBW a tetralogy, it was a trilogy before ALBW. Destruction of Ganon --> Failed resurrection --> Link's meaningless journey --> the descendant of his spirit beat a revived Ganon.
And there is another one too...but this one is a bit more unconventional. TMC, FS, and FSA. They're all extensions of the same story, creation of the four sword and Vaati's seal --> Vaati's escape and reseal --> destruction of Vaati and seal of New Ganon, but FSA takes place much after the previous two and there are multiple events that happen in between.