メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.41031901214 43.0673557687578, 141.410332294086 43.0673736599752, 141.411090498887 43.0680487590809, 141.411631571485 43.0681297339406, 141.41148772537 43.0685915212464, 141.411348135019 43.0690364611821, 141.41135018613 43.0690549028736, 141.411194543029 43.0695227898607, 141.41104879128 43.0700177561849, 141.411034053236 43.07001511587, 141.409584882096 43.0697738771322, 141.408761749753 43.0696169739531, 141.408678953508 43.0687617904302, 141.408604471167 43.0681542959976, 141.408548654639 43.0676200115235, 141.408610420907 43.0676066102022, 141.409829720008 43.0669112815672, 141.41031901214 43.0673557687578)) ^^http://www.opengis.net/ont/geosparql#wktLiteral