メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.884015812801 38.1769398146029, 140.885113411923 38.176986654286, 140.885740062699 38.1770225661505, 140.885878396439 38.1770177203494, 140.885846024323 38.177901412774, 140.885798781043 38.1785676076033, 140.885697883703 38.1798725477872, 140.885193121866 38.1798482690821, 140.883814797412 38.1797956350712, 140.883278243974 38.1797795281274, 140.882426779873 38.179753974338, 140.882451426214 38.1793890608289, 140.882510943937 38.1784207474605, 140.882563348227 38.1775771690797, 140.882586657852 38.1772661759609, 140.883084523792 38.1768981108544, 140.884015812801 38.1769398146029)) ^^http://www.opengis.net/ont/geosparql#wktLiteral