# filename: ex0420.ttl

@prefix ab:   <http://learningsparql.com/ns/addressbook#> .
@prefix rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

ab:Musician rdfs:subClassOf ab:Person . 

ab:i0432 ab:firstName     "Richard" ;
        ab:lastName       "Mutt" ;
NOT DONE

ab:playsInstrument
      rdf:type rdf:Property ;
      rdfs:comment "Identifies the instrument that someone plays" ;
      rdfs:label "plays instrument" ;
      rdfs:domain ab:Musician ;
      rdfs:range ab:MusicalInstrument .