メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.91023635065 35.102022636292, 136.910186743213 35.1021982461604, 136.910083671718 35.1025558661512, 136.910028894852 35.1027395637323, 136.908942965965 35.102517027232, 136.908991889204 35.1023421221716, 136.909054061592 35.1021499896319, 136.909109840986 35.1019750288316, 136.909163562048 35.101806471175, 136.91023635065 35.102022636292)) ^^http://www.opengis.net/ont/geosparql#wktLiteral