メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.319205382275 37.3872688711465, 140.31976878245 37.3872820472748, 140.320155841074 37.3872912976074, 140.320727345106 37.3872817678715, 140.320733447848 37.3875295443137, 140.320720738827 37.3876516663435, 140.320688121639 37.3878259662658, 140.320429349938 37.3878251995215, 140.320105447055 37.3878480724993, 140.319176643039 37.3878259787733, 140.318680417974 37.3877231196904, 140.318710051504 37.3869891680275, 140.319201800419 37.3869527971606, 140.319205382275 37.3872688711465)) ^^http://www.opengis.net/ont/geosparql#wktLiteral