メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.699457466431 35.3620280485708, 136.69382610938 35.3622363425241, 136.693214888397 35.3619900614948, 136.693188202732 35.3618554497154, 136.693148999509 35.3617448731414, 136.693058737076 35.3601991778682, 136.697394486651 35.3600200102274, 136.697648399319 35.3602869172621, 136.698447809382 35.3610338384232, 136.699457466431 35.3620280485708)) ^^http://www.opengis.net/ont/geosparql#wktLiteral