メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.987519241024 43.5645231999937, 144.98712968804 43.5642580465958, 144.986997213074 43.5643990444319, 144.986860571378 43.5642987744262, 144.986724527913 43.5641989120687, 144.986771566171 43.5641614303117, 144.986946091864 43.5640222380195, 144.986798421546 43.5631965121924, 144.986815219344 43.5631831009912, 144.987601107547 43.563701185761, 144.988095538133 43.5640272170174, 144.987519241024 43.5645231999937)) ^^http://www.opengis.net/ont/geosparql#wktLiteral