メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.178282809374 35.3442658331442, 137.177614001571 35.3443227291567, 137.177586058819 35.3442798447976, 137.177313628483 35.3442798702306, 137.177133496357 35.3442752390693, 137.177048190554 35.3442655278379, 137.176978335416 35.3442426474494, 137.176861327424 35.3441925875452, 137.176518636772 35.3440276882657, 137.177685683732 35.3424204774168, 137.178378617795 35.3422162564987, 137.17906299326 35.3418964699963, 137.179450853862 35.3423520591079, 137.178594654847 35.3432962994749, 137.178503152182 35.3435607446086, 137.178282809374 35.3442658331442)) ^^http://www.opengis.net/ont/geosparql#wktLiteral