メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.652266887038 35.3578712071062, 139.646220329322 35.355567310195, 139.64546162425 35.3553084067654, 139.643622433016 35.3546059396535, 139.643623008302 35.354579884106, 139.643720975569 35.3526031081329, 139.643830878858 35.3508485998, 139.656965314472 35.3509061451972, 139.656972812202 35.3535633905968, 139.656718313208 35.3537673937596, 139.654867463551 35.3537762249346, 139.652266887038 35.3578712071062)) ^^http://www.opengis.net/ont/geosparql#wktLiteral