メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.490306550536 40.5989272180107, 140.490940842354 40.5990284569398, 140.49166747419 40.5991555785538, 140.491226458213 40.6007212066845, 140.491170509353 40.6009578043053, 140.49092515222 40.6016831991017, 140.490725495238 40.602501323907, 140.490019818348 40.6023806620627, 140.48937295965 40.6022665734458, 140.488712350172 40.6021704542203, 140.489017093905 40.6010179395373, 140.489090323267 40.6007388260527, 140.489282715803 40.6000353005548, 140.489282838686 40.6000113768509, 140.489506607307 40.5992271698638, 140.489624876965 40.5988183751185, 140.490306550536 40.5989272180107)) ^^http://www.opengis.net/ont/geosparql#wktLiteral