# Shapes Constraint Language > A language for describing and validating RDF graphs. A language for describing and validating [RDF](https://wiki.g15e.com/pages/Resource%20description%20framework.txt) graphs. https://www.w3.org/TR/shacl12-core/ ## See also - https://www.w3.org/TR/shacl12-sparql/ - SHACL 1.2 [SPARQL](https://wiki.g15e.com/pages/SPARQL.txt) Extensions