@prefix rdf: . @prefix dbpedia: . @prefix yago: . dbpedia:Photoplethysmogram rdf:type yago:Inquiry105797597 , yago:Procedure101023820 . @prefix pwdr: . @prefix ns4: . dbpedia:Photoplethysmogram pwdr:describedby ns4:Inquiry105797597 , ns4:Procedure101023820 .