メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.382250076517 42.988504488494, 144.38139449925 42.9883785952411, 144.381408204499 42.9882985180172, 144.381036082372 42.9882302762847, 144.38100016985 42.9883552158131, 144.380646190128 42.9882964106954, 144.38058780736 42.9884086872954, 144.379811908625 42.9882709597881, 144.380062152352 42.9874958509876, 144.382444302509 42.9879162972624, 144.382250076517 42.988504488494)) ^^http://www.opengis.net/ont/geosparql#wktLiteral