メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.87670557398 35.1034345462599, 136.876660249954 35.104820473206, 136.876691298369 35.1048372352174, 136.876676103671 35.1052675224319, 136.876646453885 35.1052790704781, 136.876641316501 35.1054387662453, 136.875090463874 35.1054040927413, 136.875112897362 35.1045742801724, 136.875152783394 35.103408900183, 136.876227852371 35.1034266573709, 136.87670557398 35.1034345462599)) ^^http://www.opengis.net/ont/geosparql#wktLiteral