メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.595225665735 35.3231483638162, 136.595789011494 35.3231145538678, 136.596503864519 35.3230773031312, 136.596773262041 35.3262243297291, 136.592892153337 35.3264554603433, 136.59270764426 35.3243286616447, 136.594031546009 35.324255938873, 136.593960121122 35.3232098243952, 136.594563935785 35.3231823384728, 136.595225665735 35.3231483638162)) ^^http://www.opengis.net/ont/geosparql#wktLiteral