メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.29295976855 43.0682314121951, 141.293014888577 43.0682768836824, 141.293451402305 43.0686126973347, 141.292689243207 43.0690273829397, 141.292354018091 43.0692097543569, 141.291613612943 43.0696125901447, 141.291028382271 43.0691373967287, 141.29067617399 43.0688646630975, 141.291322904896 43.0685018407302, 141.29163392751 43.0683278731617, 141.291686370333 43.0682985396821, 141.291702348594 43.0682888269848, 141.291808682893 43.0682241712694, 141.291963673163 43.0681403279405, 141.292496697531 43.0678519822979, 141.292588320336 43.0679249061992, 141.29295976855 43.0682314121951)) ^^http://www.opengis.net/ont/geosparql#wktLiteral