メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.327411240192 43.0856052516739, 141.327427214341 43.0856277454504, 141.32782426809 43.086145897026, 141.327885142271 43.0862263518403, 141.328084423164 43.086489722816, 141.327638474607 43.0868128021053, 141.327108874224 43.0871852070691, 141.326868270154 43.0869644720978, 141.326244490434 43.086394551885, 141.325899439419 43.0860818237745, 141.325847336364 43.086030765816, 141.327144135393 43.0852709319425, 141.327411240192 43.0856052516739)) ^^http://www.opengis.net/ont/geosparql#wktLiteral