メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.721233401537 35.4303221465085, 136.720671044197 35.4303425722597, 136.720116250839 35.4303486924032, 136.720021377391 35.431240138474, 136.719661716258 35.4312060650302, 136.717866103374 35.4310010039674, 136.716643116075 35.4308964960992, 136.716621893787 35.429932931808, 136.716666222093 35.4296898309934, 136.719025638195 35.4292025897195, 136.719496875109 35.4291593004799, 136.719975196252 35.4291336754887, 136.720520581009 35.4290848126867, 136.721104184532 35.4290399948927, 136.721219602863 35.430109392309, 136.721233401537 35.4303221465085)) ^^http://www.opengis.net/ont/geosparql#wktLiteral