メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.03376784206 43.5697989386018, 142.033798449533 43.5694817831706, 142.033840848672 43.5691603251272, 142.033860714166 43.5690007558274, 142.033922797861 43.5685024748059, 142.034014883977 43.5679578702879, 142.036046603758 43.5680691466546, 142.034737937848 43.5697085663641, 142.034684721034 43.5697556228156, 142.034584453683 43.5697683079394, 142.034454520279 43.5698280577304, 142.034277385661 43.5699092051181, 142.034141865584 43.5698875042081, 142.03376784206 43.5697989386018)) ^^http://www.opengis.net/ont/geosparql#wktLiteral