メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.989947076295 34.8956859720556, 136.988842278448 34.8959789581683, 136.988375374894 34.8960827884745, 136.987912254309 34.8961409839594, 136.987828073024 34.8946525595678, 136.988098962017 34.8946489441674, 136.989793034464 34.8946592487556, 136.989848818097 34.8952379029053, 136.989897403973 34.8954511617014, 136.989947076295 34.8956859720556)) ^^http://www.opengis.net/ont/geosparql#wktLiteral