メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.527125080441 39.2169978119915, 140.526823970306 39.2164402634183, 140.527123038585 39.2161185048891, 140.527382777933 39.2158580825762, 140.527848855942 39.2162499698866, 140.527669838254 39.2164430414868, 140.527374149911 39.2167577016996, 140.527200563317 39.2169388921973, 140.527125080441 39.2169978119915)) ^^http://www.opengis.net/ont/geosparql#wktLiteral