Macro reasonable::rdfs

macro_rules! rdfs {
    ($t:expr) => { ... };
}

Returns the full URI of the concept in the RDFS namespace

let uri = rdfs!("subClassOf");
assert_eq!(uri, Node::UriNode { uri: Uri::new("http://www.w3.org/2000/01/rdf-schema#subClassOf".to_string()) } );