Original sentence: REDIRECT Ontology (information science)
Edited sentence: Advanced solutions for ontology persistence in RDBMSs are now widely available.Good libraries also support ontology query languages like SPARQL.One exemplary solution can be found in the Java-based Jena toolkit.Ontology Libraries are storage areas for ontologies.There is no one ontology language, therefore ontology libraries are usually restricted to plain text files or some XML storage format, mostly plain files again.When the ontology representation is RDF-based (RDF, OWL dialects), those are also called triple stores because of the RDF statement triples