メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.461263161135 43.0510144456751, 144.457781549052 43.052810924309, 144.457971148824 43.0525522589159, 144.458192646711 43.0521618867207, 144.458342363311 43.051732674778, 144.458437694139 43.0513218127308, 144.458453640106 43.0510074946121, 144.458442281596 43.050707277703, 144.460301177045 43.0497128724977, 144.460816882913 43.0505238967058, 144.461263161135 43.0510144456751)) ^^http://www.opengis.net/ont/geosparql#wktLiteral