メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.355063199334 43.0649050871987, 141.356054134669 43.0650517385089, 141.355901027629 43.0656933189387, 141.355768238 43.0662497495578, 141.355767527823 43.0662524869746, 141.354743779891 43.06611816479, 141.353981867968 43.0660061411064, 141.354282460373 43.0648090934951, 141.355063199334 43.0649050871987)) ^^http://www.opengis.net/ont/geosparql#wktLiteral