メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.340378917896 43.0279431225878, 141.340523902725 43.0277585326512, 141.34070367069 43.0277695964809, 141.341523677649 43.0278145801653, 141.341822230174 43.0278314383871, 141.341765016293 43.0282075328146, 141.341763778659 43.028297968059, 141.341738608935 43.0284771109156, 141.34173571243 43.0284980461459, 141.341632831956 43.0291754949591, 141.339657630743 43.029060351511, 141.33971438321 43.0286127277277, 141.339745650905 43.028391014292, 141.339757866195 43.028303901812, 141.339763777406 43.0281568874784, 141.339830338793 43.0277329735046, 141.340378917896 43.0279431225878)) ^^http://www.opengis.net/ont/geosparql#wktLiteral