メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.771295751848 34.8796978276482, 135.770648301688 34.8797381063885, 135.770652628404 34.8795054941718, 135.770628738192 34.8788743540743, 135.770649429533 34.8788025566261, 135.770662447678 34.878739125821, 135.770656488806 34.8786467858075, 135.770631693632 34.878262771557, 135.770613859377 34.8778859512135, 135.770610491355 34.8778147430824, 135.77108073971 34.8777065938294, 135.771295751848 34.8796978276482)) ^^http://www.opengis.net/ont/geosparql#wktLiteral