@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix nao: <http://tracker.api.gnome.org/ontology/v3/nao#> .
@prefix nrl: <http://tracker.api.gnome.org/ontology/v3/nrl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix fts: <http://tracker.api.gnome.org/ontology/v3/fts#> .
@prefix nmm: <http://tracker.api.gnome.org/ontology/v3/nmm#> .
@prefix slo: <http://tracker.api.gnome.org/ontology/v3/slo#> .
@prefix tracker: <http://tracker.api.gnome.org/ontology/v3/tracker#> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix nfo: <http://tracker.api.gnome.org/ontology/v3/nfo#> .
@prefix osinfo: <http://tracker.api.gnome.org/ontology/v3/osinfo#> .
@prefix nco: <http://tracker.api.gnome.org/ontology/v3/nco#> .
@prefix nie: <http://tracker.api.gnome.org/ontology/v3/nie#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix mfo: <http://tracker.api.gnome.org/ontology/v3/mfo#> .

GRAPH <http://example/B> {
  <http://example/a> nmm:trackNumber 1 .

  <http://example/b> nmm:beatsPerMinute 120 .
}

GRAPH <http://example/A> {
  <http://example/a> nie:title "Aaa" ;
    dc:title "Aaa" ;
}

GRAPH <http://example/B> {

}

GRAPH <http://example/A> {
}

GRAPH <http://example/B> {
}

GRAPH <http://example/A> {
  <http://example/a> rdf:type rdfs:Resource, nie:InformationElement, nfo:Media, nmm:MusicPiece .
}

GRAPH <http://example/B> {
  <http://example/a> rdf:type rdfs:Resource, nie:InformationElement, nfo:Media, nmm:MusicPiece .

  <http://example/b> rdf:type rdfs:Resource, nie:InformationElement, nfo:Media, nmm:MusicPiece .
}
