メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.173688272665 34.6817756710978, 135.174182374949 34.6820742543231, 135.173695139751 34.6827244308882, 135.173302400522 34.6832770443305, 135.172885181174 34.6830275086824, 135.172196406442 34.6826333530525, 135.172255855146 34.682576600842, 135.172701660321 34.6821453245013, 135.172939406019 34.6819138074316, 135.173293043488 34.6815417608314, 135.173328712893 34.6815617979622, 135.173688272665 34.6817756710978)) ^^http://www.opengis.net/ont/geosparql#wktLiteral