# RDF

1. Resources

[What is RDF?](https://en.wikipedia.org/wiki/Resource_Description_Framework)

[What is an ontology](https://en.wikipedia.org/wiki/Ontology_(information_science))

[SPARQL](https://www.w3.org/TR/sparql11-query/)

[OWL - Web Ontology Language](https://en.wikipedia.org/wiki/Web_Ontology_Language)

[RDF Schema](https://www.w3.org/TR/rdf-schema/)

[RDFS or OWL for data modelling?](https://www.cambridgesemantics.com/blog/semantic-university/learn-owl-rdfs/rdfs-vs-owl/)

[RDF Playground](http://rdfplayground.dcc.uchile.cl/)

[Ontotext Knowledge hub - whitepapers, case studies, papers](https://www.ontotext.com/knowledgehub/fundamentals/what-is-rdf/)

[Wikidata - the free knwoledge base with 94 000 000 items](https://www.wikidata.org/wiki/Wikidata:Main_Page)