メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.386029947514 42.982064564908, 144.385439007693 42.9819663880469, 144.385366559188 42.9822086807363, 144.384338390072 42.9820254110312, 144.384489231143 42.9815517556806, 144.385156403134 42.9815833915966, 144.38530996284 42.9811276188406, 144.385754854111 42.9812127737093, 144.386278032326 42.9813127085023, 144.386029947514 42.982064564908)) ^^http://www.opengis.net/ont/geosparql#wktLiteral