Chris@0: PREFIX af: Chris@0: PREFIX event: Chris@0: PREFIX tl: Chris@0: Chris@0: SELECT ?start ?duration Chris@0: FROM Chris@0: WHERE Chris@0: { Chris@0: ?e a af:StructuralSegment; Chris@0: event:time ?time. Chris@0: ?time tl:start ?start; Chris@0: tl:duration ?duration. Chris@0: } Chris@0: