メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.04391105948 37.9186302582711, 139.043406954988 37.9188120927914, 139.043080143803 37.9189258114414, 139.042983605952 37.9187749160898, 139.042848035025 37.9186688286278, 139.042794692919 37.9187128594674, 139.042479263777 37.9184590759402, 139.042183635875 37.9186871043271, 139.042070192057 37.9186052699493, 139.04236005935 37.9183792398961, 139.042130474294 37.9182115003359, 139.042169666812 37.9181824578361, 139.042177666225 37.9181888974006, 139.042476210277 37.9179586031558, 139.042860815412 37.917669484653, 139.043273982693 37.9180202365947, 139.04355898081 37.9182682446185, 139.043645273897 37.918355131818, 139.043679097094 37.918344838674, 139.043784421728 37.9184520492111, 139.043806533538 37.9184746127234, 139.04391105948 37.9186302582711)) ^^http://www.opengis.net/ont/geosparql#wktLiteral