メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.592625116522 42.9017503048566, 141.593791782288 42.9025073577386, 141.593449702357 42.9027901635244, 141.593155326892 42.9031254266484, 141.592499596049 42.90395008469, 141.592288564671 42.904206351112, 141.590953933604 42.9036304716926, 141.589696044195 42.9030957407695, 141.589883656917 42.9028608649398, 141.591043739723 42.9014203602898, 141.591118598524 42.9013436379346, 141.591370342609 42.9010142521973, 141.591695193263 42.9011427174577, 141.592297910949 42.9015005080906, 141.592625116522 42.9017503048566)) ^^http://www.opengis.net/ont/geosparql#wktLiteral