メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.029902609953 34.9280299590214, 137.028818520153 34.9291439372779, 137.02604602467 34.9272991955103, 137.027226786926 34.9260870315119, 137.026362992571 34.924564050357, 137.027436455463 34.9241944169092, 137.027997100693 34.9239831437458, 137.02865014574 34.9237334500862, 137.028990363388 34.9244150002739, 137.029164894891 34.924908252966, 137.029354347484 34.92578182472, 137.029511949388 34.9264767586066, 137.029562394579 34.9267118281269, 137.029711756927 34.9273691442387, 137.029902609953 34.9280299590214)) ^^http://www.opengis.net/ont/geosparql#wktLiteral