メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.210150561485 36.6674195364421, 137.210204964726 36.6682628356582, 137.210226391418 36.6685048824727, 137.209536335518 36.6685022522633, 137.209496589459 36.6679620456227, 137.209451214599 36.6674490856605, 137.208966592951 36.6674537664339, 137.208677929248 36.6674483795571, 137.207865778556 36.6674754189534, 137.207909971431 36.6679975333562, 137.207918065354 36.6681941727194, 137.207333856692 36.6681902937111, 137.206705202979 36.6681905093819, 137.206655937358 36.6673848726256, 137.20660923067 36.6668230494355, 137.207228270529 36.6668193886544, 137.20815935106 36.6668035484776, 137.208622483298 36.6667956670794, 137.210086939813 36.6667795730745, 137.210150561485 36.6674195364421)) ^^http://www.opengis.net/ont/geosparql#wktLiteral