Macro reasonable::rdf

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

Returns the full URI of the concept in the RDF namespace

let uri = rdf!("type");
assert_eq!(uri, Term::NamedNode(NamedNode::new_unchecked("http://www.w3.org/1999/02/22-rdf-syntax-ns#type".to_string())));