Interesting stuff… incidentally, predating those, for my Ph.D thesis I developed the “path shortcuts” predicate-of-subject and predicate-of-object which allowed one to access predicates of statements using a particular node as a subject (or object, respectively) – that is, reach the predicate from a subject (object) via a “virtually reified” statement (the reification did not need to exist). I needed those for implementing an RDF(S) reasoner in the form of path query rewriting rules.
Ora
--
Dr. Ora Lassila
Principal Graph Technologist
Amazon Web Services
ora@amazon.com
From: Vladimir Alexiev <vladimir.alexiev@ontotext.com>
Date: Thursday, July 8, 2021 at 2:42 PM
To: Public Shacl W3C <public-shacl@w3.org>, "public-rdf-star@w3.org" <public-rdf-star@w3.org>
Subject: RE: [EXTERNAL] Does SHACL support rdf-star ?
Resent-From: <public-rdf-star@w3.org>
Resent-Date: Thursday, July 8, 2021 at 2:13 PM
CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you can confirm the sender and know the content is safe.
Have you looked at https://www.w3.org/wiki/PropertyReificationVocabulary, http://smiy.sourceforge.net/prv/spec/propertyreification.html for ways to capture representation patterns?