メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.236654364049 38.4319993257317, 141.237696125157 38.432183937658, 141.237858052366 38.4338762934348, 141.237878139125 38.4343002269898, 141.236470962752 38.4337752249909, 141.235820589032 38.4335097186604, 141.235906647023 38.4327242008015, 141.235997729067 38.4318844678275, 141.236654364049 38.4319993257317)) ^^http://www.opengis.net/ont/geosparql#wktLiteral