メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.459961274494 43.5798369306514, 142.459697106416 43.5805344401467, 142.459651213865 43.5806618129189, 142.459297574962 43.581642858571, 142.459292448714 43.5816571093482, 142.459216670174 43.5818839752021, 142.458888060428 43.5828679979708, 142.458845659738 43.5830476495263, 142.458842179518 43.5830624238569, 142.458825924651 43.583131195826, 142.458825491376 43.5831526104286, 142.458912224488 43.5839124153941, 142.455540958372 43.581649027314, 142.45796277895 43.5793156560489, 142.458358070947 43.5789347934733, 142.459322895047 43.5786638570004, 142.459724573835 43.5782184210005, 142.46035443948 43.5775934452227, 142.460708275904 43.5773222167072, 142.460949450224 43.5772042923184, 142.460842217761 43.5773548107661, 142.46077153446 43.5775557543736, 142.460185626988 43.579221141634, 142.46006956224 43.5795510377929, 142.459961274494 43.5798369306514)) ^^http://www.opengis.net/ont/geosparql#wktLiteral