Bitcoin Schema is a set of pre-defined data schemas that form overlay networks on Bitcoin. Bitcoin Schema uses a combination of data protocols to form the building blocks of new networks, such as "BSocial" - an open, interoperable social media network.
For example, you can create an Ordinal that is also a BSocial post, make a comment with B protocol, and use MAP to assign the "post" type to the transaction. The pseudoscript would look like this: