メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.363687417455 38.3531933453995, 140.364448686669 38.3531203748597, 140.364887243851 38.3549795213085, 140.364076892126 38.3550715843989, 140.363551251618 38.3551200172929, 140.362564688205 38.3552299459, 140.362257756433 38.3552606689242, 140.362138752778 38.354573486938, 140.362060279354 38.3541781556138, 140.362002979915 38.3537844572142, 140.361934072806 38.353402959766, 140.362841557581 38.3532849763718, 140.363687417455 38.3531933453995)) ^^http://www.opengis.net/ont/geosparql#wktLiteral