メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.33675485866 43.0960079895489, 141.336677008301 43.0963386144205, 141.336667157413 43.0963492958339, 141.336581213744 43.0967207161548, 141.335716586222 43.0966005745741, 141.335277089793 43.096552399918, 141.335366237289 43.0962305868289, 141.335376311182 43.0961791875345, 141.335450842662 43.0958915083057, 141.335460910726 43.0958469297904, 141.335538057807 43.0955446431004, 141.335558134703 43.0954787648223, 141.336828290286 43.0956453297549, 141.336827283953 43.0957130485222, 141.33675485866 43.0960079895489)) ^^http://www.opengis.net/ont/geosparql#wktLiteral