メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.87033356672 35.0972246165771, 136.870410587252 35.0972286778335, 136.870403822757 35.0973088651803, 136.87051131371 35.097316662937, 136.870502993448 35.0974065637204, 136.870461819047 35.0978852239373, 136.87028442907 35.0978766928011, 136.868552175423 35.0977923105907, 136.868378250857 35.0976111249102, 136.868272657424 35.0975073528661, 136.868031031175 35.0972588222405, 136.868932289646 35.0973058233737, 136.868955752314 35.0970485795763, 136.869353102845 35.0970749757801, 136.869339657077 35.0971720465709, 136.87033356672 35.0972246165771)) ^^http://www.opengis.net/ont/geosparql#wktLiteral