メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.547998631076 34.0637324794882, 134.547294403205 34.0637589800132, 134.547275365456 34.0628726628297, 134.547265368341 34.0624043648804, 134.54752539808 34.0623951590343, 134.547920285071 34.0623811726742, 134.547937270233 34.0626744556826, 134.547988964566 34.0635661951323, 134.547998631076 34.0637324794882)) ^^http://www.opengis.net/ont/geosparql#wktLiteral