メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.699298364142 35.3659640035944, 136.702213720244 35.3679390904058, 136.701767119761 35.3679629262488, 136.700478654163 35.368018072696, 136.699812584724 35.3680375979639, 136.699190943064 35.3680684896519, 136.697938663904 35.3681243134582, 136.697881610728 35.3671073410554, 136.697236991204 35.367128625478, 136.697182578874 35.3660657476256, 136.697118780907 35.3649012134522, 136.69661102088 35.3645457099504, 136.696854649077 35.364308918917, 136.699298364142 35.3659640035944)) ^^http://www.opengis.net/ont/geosparql#wktLiteral