メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.875587632679 43.0132619188152, 142.87555892787 43.013285425134, 142.875273301537 43.0135376355244, 142.875430631202 43.0136470538707, 142.875085214445 43.0139576121421, 142.87369909474 43.0131261305115, 142.873865135705 43.0130174133571, 142.874006801945 43.0129528535194, 142.874436483005 43.0125739023497, 142.874462608238 43.0125512547574, 142.874505579209 43.0125782378347, 142.875065727957 43.0129301378642, 142.875510413875 43.0132128282282, 142.875587632679 43.0132619188152)) ^^http://www.opengis.net/ont/geosparql#wktLiteral