メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.321065876084 43.0897327150892, 141.32112685323 43.0897361648045, 141.321395831461 43.0899708556786, 141.321779429654 43.0902854567969, 141.322052624712 43.0905082259256, 141.322293112328 43.0906918372989, 141.322164218892 43.0907693483191, 141.321999839475 43.0908836334323, 141.321760446328 43.0910659506595, 141.321294170903 43.0914088121366, 141.320827919686 43.0917499167837, 141.320485169535 43.0919956031096, 141.320032402467 43.0923201459094, 141.319520819458 43.0917245921077, 141.319433958952 43.0916240894834, 141.319010098527 43.0911517596123, 141.318996937088 43.0911370934434, 141.31873788625 43.09084276941, 141.318538698669 43.0905877537018, 141.318584713816 43.0905590823765, 141.318686916246 43.0905271417064, 141.318850994464 43.0904330413371, 141.319175162301 43.0902419249764, 141.319884241367 43.0898276203541, 141.320030446825 43.0897424560429, 141.320611296796 43.0894041043067, 141.320839950082 43.0896146272518, 141.320972417772 43.0897259786155, 141.321065876084 43.0897327150892)) ^^http://www.opengis.net/ont/geosparql#wktLiteral