メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.339970815899 38.2432425952178, 140.33936902321 38.2434109656447, 140.338197272563 38.2437505053255, 140.33714571777 38.2440528149245, 140.337018292158 38.2436678085557, 140.336895547205 38.2432967591083, 140.336430206169 38.2418899562013, 140.338050643959 38.2416935330343, 140.338563082516 38.2416315031451, 140.339136758747 38.2415542432948, 140.339352185742 38.2415238994289, 140.339526686303 38.2416927241676, 140.339804833154 38.2416392741154, 140.340619519244 38.2430592159129, 140.339970815899 38.2432425952178)) ^^http://www.opengis.net/ont/geosparql#wktLiteral