メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.781419162114 35.4100153228866, 136.780152257805 35.4100509446842, 136.778692595137 35.4100936841909, 136.778631252834 35.4099254655128, 136.779874846108 35.4095109940316, 136.780185698307 35.409378325983, 136.780176595453 35.4098352543012, 136.781404601661 35.4098031001006, 136.781419162114 35.4100153228866)) ^^http://www.opengis.net/ont/geosparql#wktLiteral