メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.39189442028 43.78204057651, 142.392084233827 43.7823801760828, 142.392260075297 43.7827248728197, 142.392449905223 43.7830695529463, 142.39265370242 43.7833989898958, 142.391716284795 43.7836791107832, 142.391533444227 43.7833344389336, 142.39139284997 43.7830860564897, 142.391238696127 43.7830304622122, 142.39102144717 43.7829343498923, 142.390929916429 43.7827112941955, 142.390740129283 43.7823868994323, 142.390683888415 43.7822855290785, 142.390648719757 43.7822145627275, 142.390596065074 43.7821461505703, 142.391771351759 43.7818099477645, 142.39189442028 43.78204057651)) ^^http://www.opengis.net/ont/geosparql#wktLiteral