メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.872261905904 35.2336908449676, 136.871171131157 35.2336876140692, 136.871364980082 35.2331512416562, 136.871707609004 35.2324267760058, 136.872235232005 35.2315143772794, 136.872320425872 35.2313583830727, 136.872738904473 35.2306476240204, 136.873154253045 35.2299340389617, 136.873372312153 35.229561953131, 136.873565055886 35.2296458756728, 136.874245046113 35.2296327405081, 136.87426913794 35.2306225468019, 136.874285005809 35.2335556287671, 136.874268133581 35.23355727799, 136.872275024746 35.2335645346153, 136.872261905904 35.2336908449676)) ^^http://www.opengis.net/ont/geosparql#wktLiteral