Semantic Web - Wikipedia
The Semantic Web (sometimes known as Web 3.0) is an extension of the World Wide Web through standards set by the World Wide Web Consortium (W3C). The goal of the Semantic Web is to make Internet data machine-readable. To enable the encoding of semantics with the data, technologies such as Resource Description Framework (RDF) and Web Ontology Language (OWL) are used.
https://en.wikipedia.org/wiki/Semantic_Web