メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.0282336851 36.7440069432677, 137.028870387841 36.7452566676705, 137.028092428483 36.745518404752, 137.027564123359 36.7457045234439, 137.026960858382 36.7459096344836, 137.026364903803 36.7461089056801, 137.026075639916 36.7462096775739, 137.025155318609 36.7450470551786, 137.024570936846 36.7443152786075, 137.024158814749 36.7437542926709, 137.024150359169 36.7437440739923, 137.023952160977 36.743505164655, 137.025645521384 36.7432999238693, 137.026258539594 36.7432250836181, 137.026268985479 36.7432238285268, 137.026849026008 36.7431396551625, 137.027714502723 36.7430304548452, 137.0282336851 36.7440069432677)) ^^http://www.opengis.net/ont/geosparql#wktLiteral