メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.394943254585 43.7988233430292, 142.39460572535 43.799093259171, 142.393984822589 43.799589788861, 142.393477147791 43.7999991693815, 142.393450282683 43.8000208264639, 142.392963652129 43.8003623873979, 142.392474902014 43.8007085026261, 142.392135408977 43.8004664672302, 142.390827661874 43.7995073057693, 142.391320563283 43.7991521218658, 142.391807205813 43.7988105498419, 142.39238367627 43.7984158422894, 142.39455990321 43.7968795855212, 142.396684475996 43.7973633430003, 142.395861801633 43.7980531599384, 142.394943254585 43.7988233430292)) ^^http://www.opengis.net/ont/geosparql#wktLiteral