メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.558260602618 34.0731250631593, 134.557052999123 34.0732240719604, 134.556850986638 34.0716059250953, 134.556721127376 34.0716040859727, 134.556580097097 34.0704651288975, 134.557327144838 34.0704544020721, 134.557921325399 34.0704154752903, 134.558075385249 34.0716136898374, 134.5581233873 34.0719137435544, 134.558260602618 34.0731250631593)) ^^http://www.opengis.net/ont/geosparql#wktLiteral