メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.343365215473 43.0312773424455, 141.343346326626 43.031388314238, 141.343303904688 43.0316781612183, 141.343303572414 43.031700734504, 141.343261239507 43.0320170965742, 141.34227194612 43.0319539736657, 141.341329100955 43.03188769386, 141.341366730766 43.0315529394796, 141.341403825417 43.0312219077639, 141.341418097529 43.0311447274978, 141.341482671751 43.0305624837782, 141.343443115288 43.030693865514, 141.343414657431 43.0309012551725, 141.343399404362 43.0310127491108, 141.343382636405 43.0311423751403, 141.343365215473 43.0312773424455)) ^^http://www.opengis.net/ont/geosparql#wktLiteral