メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.191975906913 36.6454713740389, 138.191082246251 36.646161981684, 138.190546933915 36.6464766396052, 138.19048743797 36.6465143616409, 138.190452560259 36.6465620768468, 138.188637083664 36.6467094192524, 138.188223524297 36.6445438717026, 138.188125310767 36.6446224701516, 138.187977058196 36.6443617871015, 138.187552885354 36.6445499984543, 138.18737774395 36.6442852316391, 138.187872922034 36.644087349877, 138.188212546231 36.644230251066, 138.188943129702 36.6435428795776, 138.191251210374 36.6449832109031, 138.191289753277 36.6450072480241, 138.191975906913 36.6454713740389)) ^^http://www.opengis.net/ont/geosparql#wktLiteral