"RDF-Star" is an extension to RDF (and friends RDF Turtle, and SPARQL) which allows annotating graph edges directly.

Example

PREFIX :    

:employee38 :familyName "Smith" .
<< :employee38 :jobTitle "Assistant Designer" >> :accordingTo :employee22 .

After declaring a prefix so that IRIs can be abbreviated, the first triple in this example asserts that employee38 has a familyName of "Smith". Note that this dataset does not assert that employee38 has a jobTitle of "Assistant Designer"; it says that employee22 has made that claim. In other words, the triple "employee38 has a jobTitle of 'Assistant Designer'" is not what we call an asserted triple, like "employee38 has a familyName of 'Smith'" above; rather, it is known as a quoted triple.