メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.595985219872 40.7047370071529, 140.594981720559 40.703218357127, 140.594992433397 40.7031755311302, 140.594691817574 40.7029295678769, 140.594792534228 40.7028668058082, 140.594856243455 40.7028052331749, 140.594898803263 40.7027302501436, 140.594984095213 40.7025454536073, 140.595167371194 40.7025672923592, 140.595378547232 40.7026803025989, 140.595452350746 40.7027448346817, 140.595918352609 40.7025929785992, 140.596088812354 40.7027501584256, 140.597132411398 40.7043032134716, 140.595985219872 40.7047370071529)) ^^http://www.opengis.net/ont/geosparql#wktLiteral