メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.790798892373 34.7696981643196, 135.789471110195 34.7697288438372, 135.789159673948 34.7697602822423, 135.788981139149 34.7697367321048, 135.787819033488 34.7697704969366, 135.787797767942 34.7693564699287, 135.787783922107 34.76879314424, 135.790189649768 34.7687361661695, 135.790932958733 34.7687257489686, 135.790798892373 34.7696981643196)) ^^http://www.opengis.net/ont/geosparql#wktLiteral