メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.220771887471 34.7162520261899, 135.220448525953 34.7161304287963, 135.220031990104 34.715973449853, 135.220157730521 34.715735896447, 135.220170293671 34.7157143948715, 135.220503499301 34.7151451639531, 135.221191682757 34.7154376365537, 135.221124925467 34.715575598582, 135.220902819416 34.7159896435312, 135.220771887471 34.7162520261899)) ^^http://www.opengis.net/ont/geosparql#wktLiteral