メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.39794960457 34.9714710252434, 138.39818032763 34.9711883816817, 138.398484481704 34.9713766013103, 138.398736141645 34.9715323100887, 138.399200009628 34.9718192552445, 138.399210515174 34.9718257435252, 138.400228856106 34.9724557625956, 138.400244118065 34.9724650004794, 138.400946297134 34.9728896048982, 138.401039660334 34.9729460913764, 138.399882307809 34.9735897753388, 138.399824123907 34.9735567680335, 138.39896894703 34.9740482847658, 138.398954124782 34.9740564416987, 138.397868651345 34.9734534717351, 138.397183893394 34.9730720359776, 138.396811741582 34.9728647407845, 138.397338344326 34.972214084846, 138.397358502953 34.9721892410616, 138.397743773396 34.9717131231431, 138.397806102076 34.9716363394488, 138.397838588524 34.9715963639112, 138.39794960457 34.9714710252434)) ^^http://www.opengis.net/ont/geosparql#wktLiteral