メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.87331740347 43.0118750102847, 142.873216275928 43.011811489885, 142.873123201717 43.0117529191255, 142.872432915259 43.011319290914, 142.873357648671 43.0105111071813, 142.874136211069 43.0109795559474, 142.874146480024 43.0109857601452, 142.874278919008 43.0110654247548, 142.873492456876 43.0117242577563, 142.87331740347 43.0118750102847)) ^^http://www.opengis.net/ont/geosparql#wktLiteral