メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.21756254776 34.7191037528929, 135.217409983525 34.7193865718219, 135.216866501325 34.7190997892242, 135.216806146623 34.7190709290327, 135.216226996804 34.7187663728154, 135.2164123862 34.7184900784711, 135.216657192906 34.7181547569228, 135.21781441038 34.718662454257, 135.21756254776 34.7191037528929)) ^^http://www.opengis.net/ont/geosparql#wktLiteral