メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.32461513444 43.049906370789, 141.324609740114 43.0499271446554, 141.32449962495 43.0503430260689, 141.324309922627 43.0511724329082, 141.323886604218 43.0511101405507, 141.323436230313 43.0510041650903, 141.322980792579 43.050897020684, 141.323025493193 43.050699053708, 141.323072250504 43.0504918203421, 141.323156141169 43.0501558337689, 141.323276613503 43.0496259632721, 141.323415328717 43.0490689529617, 141.324882673511 43.049269732939, 141.324746748221 43.0495019166812, 141.324663024469 43.0496553313469, 141.32461513444 43.049906370789)) ^^http://www.opengis.net/ont/geosparql#wktLiteral