メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.463630971883 43.0424268699935, 144.464231659325 43.0423870379894, 144.464836380593 43.0423315118763, 144.4654222884 43.0422966714639, 144.465673658222 43.0432648448396, 144.46497824084 43.0432781781022, 144.464887099059 43.0432713630955, 144.46429876527 43.0432656691612, 144.464270784839 43.0432607955143, 144.463698285877 43.0431303133806, 144.462952393738 43.0429773031957, 144.463049650404 43.0424772954598, 144.463630971883 43.0424268699935)) ^^http://www.opengis.net/ont/geosparql#wktLiteral