Canterlot Castle interior implications

Suggestion - make it imply:

canterlot castle could also be made to imply canterlot and maybe g4 too. Maybe on the g4 implications because the castle (and Canterlot) appear in G5 and I’m not sure if G4 stuff appearing in G5 customarily gets the g4 tag

@princess
Traditionally only character and content-offical tags (and by extension the tags that imply those) need the Generation implications.

Not sure if canterlot is necessary given you can’t even see it in most uses.