メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.888085088719 35.2609476790958, 136.888636663745 35.2609631660663, 136.888650157928 35.2622221662315, 136.888665083157 35.2627795032783, 136.887383221435 35.262831785997, 136.88539581499 35.2628637001209, 136.884793434933 35.2628744926676, 136.884510183767 35.2612708389784, 136.885102912988 35.261191931466, 136.887376706507 35.2609278147348, 136.888085088719 35.2609476790958)) ^^http://www.opengis.net/ont/geosparql#wktLiteral