メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.360118387434 34.7500443693929, 137.35993228107 34.7503465223415, 137.359250817124 34.7500361631208, 137.35920050929 34.7497490327092, 137.360118387434 34.7500443693929)) ^^http://www.opengis.net/ont/geosparql#wktLiteral