メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.866613257727 43.3286747848473, 141.867922852608 43.3284698573072, 141.867850728611 43.328640936344, 141.867829582245 43.3287789192519, 141.868267558577 43.3300128737385, 141.867060616484 43.3301738414864, 141.867153476217 43.330477545647, 141.865989285806 43.330647647762, 141.86595851545 43.3306535923175, 141.86540675889 43.3307321996583, 141.86447465943 43.3308804889203, 141.864453448233 43.3308072054859, 141.864191197221 43.3299486048621, 141.864161439527 43.3298786692577, 141.863934963965 43.3290842560678, 141.864941218138 43.3289315097252, 141.865095867166 43.3289043187175, 141.865438750813 43.3288519489679, 141.866613257727 43.3286747848473)) ^^http://www.opengis.net/ont/geosparql#wktLiteral