メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.011099145978 34.9940811036078, 137.009189911549 34.9936167899096, 137.00949179792 34.9925195219496, 137.00972335317 34.9924200272823, 137.009884997089 34.9926702484064, 137.00996739985 34.9927914170836, 137.010150911299 34.9927146066968, 137.010321011471 34.9926474973706, 137.010495657147 34.9926788505052, 137.01080169285 34.9927264274613, 137.011494667354 34.9928237970812, 137.011446398401 34.9929692358917, 137.011391682649 34.993164387121, 137.011099145978 34.9940811036078)) ^^http://www.opengis.net/ont/geosparql#wktLiteral