One of the biggest challenges in Graph Retrieval Augmented Generation (RAG) systems is how to communicate knowledge from the ontology (e.g., subclasses, types, property values) to the LLM. The approach described in this post is very simple and easy to reuse but surprisingly effective.

A short article on a subtle "gotcha" involving http and https in IRIs plus some info on catalog XML files

The reasons that puns are needed in the Web Ontology Language (OWL) and some discussion of how to use them

Describes ways to use the Simple Knowledge Organization System (SKOS) to define mappings from one Concept Scheme to another.

Basic concepts related to synonyms in the Web Ontology Language (OWL), Simple Knowledge Organization System (SKOS), and Protégé.