メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.890605576037 38.1802584601234, 140.890662410412 38.1812775420149, 140.890688633549 38.1818371319013, 140.8900175429 38.1818104187794, 140.888403467146 38.1817617506272, 140.887844592285 38.1817455326604, 140.887814911972 38.1817473759513, 140.885572334835 38.1816813527471, 140.885593897306 38.1813389647512, 140.885680832472 38.1801129879328, 140.885697883703 38.1798725477872, 140.886838518665 38.179863462713, 140.887077536195 38.1798633570225, 140.887801778017 38.1798574025769, 140.888525556182 38.179851303324, 140.889244665118 38.1798535071451, 140.889776911828 38.1798384784972, 140.89057694249 38.1798340204048, 140.890605576037 38.1802584601234)) ^^http://www.opengis.net/ont/geosparql#wktLiteral