Schema.org is probably the closest thing to that. I call the concept "Type the World" (https://breckyunits.com/type-the-world.html https://breckyunits.com/type

Schema.org is probably the closest thing to that. I call the concept "Type the World" (https://breckyunits.com/type-the-world.html https://breckyunits.com/type-the-world.html) Here's an early hacky prototype called "World Wide Types" (WWT): https://jtree.treenotation.org/designer/#standard%20wwt https://jtree.treenotation.org/designer/#standard%20wwt