メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.580917381652 43.3269896333223, 145.581080631623 43.3270367708847, 145.582452514106 43.3276250112336, 145.581643243675 43.3286500159369, 145.581518449084 43.3285945156213, 145.580731094554 43.3282744479816, 145.580125467453 43.3280081486996, 145.579478366998 43.327737216358, 145.578040313219 43.3271432736882, 145.578575982111 43.3264619614006, 145.578653734732 43.3263689851956, 145.578700016462 43.3263134906852, 145.579719564519 43.3264344865674, 145.579642835227 43.3268137038947, 145.580809163096 43.3269271789114, 145.580917381652 43.3269896333223)) ^^http://www.opengis.net/ont/geosparql#wktLiteral