メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.958486209952 39.6989197635306, 140.958143029801 39.6988783045099, 140.958102692449 39.699042245316, 140.955894582746 39.6987691449144, 140.955343627367 39.6986377914924, 140.95545511028 39.6984308476101, 140.955839649124 39.6977788938131, 140.955985466118 39.6974973534459, 140.956728988638 39.6975765600165, 140.95828140273 39.6975568107156, 140.958322065194 39.6977153506526, 140.958287196157 39.698039170065, 140.95835029682 39.698341946952, 140.9584176459 39.6986962661719, 140.958486209952 39.6989197635306)) ^^http://www.opengis.net/ont/geosparql#wktLiteral