メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.335273488166 43.1182152263459, 141.335611043751 43.1185493717522, 141.335954895717 43.1188863797344, 141.335587937025 43.1190881661616, 141.335239851052 43.1192797674705, 141.334526719859 43.1196794988625, 141.33417057746 43.1193233273036, 141.33383638456 43.1189892016394, 141.3335074874 43.118653991689, 141.333161948874 43.1183019090574, 141.333533018635 43.1181017117596, 141.333876213013 43.117916550271, 141.334235987411 43.1177199861537, 141.334598471273 43.1175218955879, 141.334925752684 43.117849351258, 141.335240968743 43.1181684812778, 141.335273488166 43.1182152263459)) ^^http://www.opengis.net/ont/geosparql#wktLiteral