メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.339773863916 43.0966091168911, 141.339644370563 43.0971423701719, 141.339041755153 43.0970592932637, 141.338832519643 43.0970282985532, 141.338140815564 43.096934449603, 141.33822424844 43.0965504887871, 141.338280814985 43.0963407289453, 141.338383356922 43.0959818164049, 141.339062321326 43.0960798525456, 141.339886933445 43.0961933208755, 141.339773863916 43.0966091168911)) ^^http://www.opengis.net/ont/geosparql#wktLiteral