メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.360024588483 43.1084509811904, 141.358462925136 43.1082499581845, 141.358405497473 43.1082453640411, 141.358490817787 43.1078896846359, 141.358517705252 43.1077502265027, 141.358674437148 43.1071370065282, 141.360294583327 43.1073611315953, 141.360214549242 43.1077036992537, 141.360135981834 43.1080311581181, 141.360091985615 43.1081856030644, 141.360024588483 43.1084509811904)) ^^http://www.opengis.net/ont/geosparql#wktLiteral