メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.206070545621 34.7091397026353, 135.20599660081 34.7093746180374, 135.2058959351 34.7096638138435, 135.205177716122 34.709360205609, 135.205267681488 34.7090913704722, 135.205315357338 34.7089535530106, 135.205426011685 34.7086166771096, 135.205460805004 34.7085107849872, 135.205529742836 34.7083187261375, 135.206293065016 34.708500308453, 135.206179136095 34.7088256590274, 135.206070545621 34.7091397026353)) ^^http://www.opengis.net/ont/geosparql#wktLiteral