メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.763452231877 35.4245117756233, 136.762681521189 35.4246830947065, 136.76266586612 35.4246310023387, 136.762516410102 35.424668956497, 136.762491116525 35.4245914108682, 136.762638487319 35.424539859899, 136.76253955681 35.4242279966051, 136.762569494568 35.4242199608476, 136.762559472804 35.4241849996025, 136.762888358057 35.4241012689963, 136.762927471713 35.424211146393, 136.763303155478 35.4241192579122, 136.763452231877 35.4245117756233)) ^^http://www.opengis.net/ont/geosparql#wktLiteral