メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.115302547685 37.8100604024138, 139.115806782176 37.8100375035321, 139.115845699456 37.8107263026608, 139.115884673362 37.8114166502107, 139.115387676132 37.8114413431496, 139.114984014997 37.8114594934394, 139.114583723273 37.81147748427, 139.114122809504 37.811493255065, 139.113658591066 37.8115115749216, 139.112400145524 37.811562591708, 139.112374332263 37.811217940878, 139.112348969445 37.8108794833195, 139.112323656949 37.8105418715297, 139.112297793853 37.8101966615112, 139.114034019569 37.8101179644015, 139.115302547685 37.8100604024138)) ^^http://www.opengis.net/ont/geosparql#wktLiteral