Slice(Distinct(Project(BGP( ?annotation <http://www.w3.org/ns/oa#hasTarget> ?target .
                            ?selector <http://www.w3.org/ns/oa#exact> ?exact .
                            ?target <http://www.w3.org/ns/oa#hasSelector> ?selector .
                            ?target <http://www.w3.org/ns/oa#hasSource> ?source),
                       {?exact, ?source})),
      0,
      100)