メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.060834832031 34.6315500274306, 135.060882474286 34.6320095044811, 135.0601531192 34.6320696389474, 135.059631852473 34.6321116253066, 135.059584217205 34.6316521475084, 135.059528363856 34.6311882111811, 135.06077897166 34.6310860919243, 135.060834832031 34.6315500274306)) ^^http://www.opengis.net/ont/geosparql#wktLiteral