メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.209837112277 34.7076274334246, 135.209826553793 34.7076613150121, 135.20974550457 34.7079977005682, 135.208626811136 34.7077601006216, 135.208746353157 34.707450482771, 135.208802018706 34.707294576475, 135.208870900323 34.7070980083123, 135.209912750717 34.707295594159, 135.209837112277 34.7076274334246)) ^^http://www.opengis.net/ont/geosparql#wktLiteral