メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.681428591348 35.2686783320822, 136.679257585067 35.2692252688644, 136.678820815231 35.2680779572244, 136.678321666948 35.2668030690551, 136.678873832938 35.2668221909744, 136.678887781355 35.2666004872254, 136.678244701097 35.2665788161356, 136.677949071302 35.2657974886031, 136.679478073202 35.2653968797672, 136.680083766983 35.265192762412, 136.681051100814 35.267694295619, 136.681428591348 35.2686783320822)) ^^http://www.opengis.net/ont/geosparql#wktLiteral