A lot of "blast from the past" comments! But as a counter example, we still use Jena extensively (in combination with its server Fuseki) to deal with biomedical

A lot of "blast from the past" comments! But as a counter example, we still use Jena extensively (in combination with its server Fuseki) to deal with biomedical ontologies and taxonomies for use in Natural Language Processing (e.g. Human Phenotype Ontology, Gene Ontology, etc). We even recently made the step to add some PROLOG-ish inference rules [1]. I have nothing but love for the RDF ecosystem, in the sense that I love their ideas even if some of the implementations are a bit wonky. For example, the performance of property paths (i.e. the + and * operators in sparql) leave things to be desired sometimes. Not to mention the funny looks from some devs when you say you use RDF, but I take that as a badge of honor! It took me a while to get it, so I finally decided to write down what it all means a couple of years ago [2]. [1]: https://jena.apache.org/documentation/inference/index.html https://jena.apache.org/documentation/inference/index.html [2]: https://joelkuiper.eu/semantic-web https://joelkuiper.eu/semantic-web