メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.879405115286 43.7994032405514, 143.87978168138 43.7994269616997, 143.881053565546 43.7995070753664, 143.880964911034 43.8000877772294, 143.880891040928 43.800783679698, 143.880762625995 43.8019367373939, 143.879881223073 43.8020363413534, 143.879089801728 43.8021315784105, 143.878276771086 43.8022177652065, 143.877358887847 43.8023042270758, 143.877438153238 43.8016838618009, 143.877492537341 43.8012698689877, 143.87757382087 43.8005737579391, 143.877618041511 43.8002217390953, 143.877657928807 43.7999030791556, 143.87766286505 43.7998632948488, 143.877724483361 43.7992939693443, 143.879405115286 43.7994032405514)) ^^http://www.opengis.net/ont/geosparql#wktLiteral