メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.554792790469 33.2090217731976, 130.553462752089 33.2090964038471, 130.553426709413 33.208610949635, 130.553939901378 33.208564004029, 130.554558789298 33.2085213442407, 130.554848734207 33.2085152483723, 130.554883510318 33.2090210767486, 130.554792790469 33.2090217731976)) ^^http://www.opengis.net/ont/geosparql#wktLiteral