メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.402728185363 32.1090767317623, 131.402103588947 32.1091181754637, 131.402081236599 32.1090798457283, 131.399947726206 32.1092371087481, 131.3995620532 32.1084703813543, 131.39956138618 32.1084690450544, 131.399143765372 32.1076358317646, 131.400133112915 32.1075602744201, 131.400970603657 32.1074963929791, 131.402023621205 32.1077359988485, 131.402630624313 32.1078668156947, 131.402728185363 32.1090767317623)) ^^http://www.opengis.net/ont/geosparql#wktLiteral