メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.854695115363 35.105452730345, 136.854669691506 35.1054232309797, 136.85410784805 35.1044947453163, 136.854571512924 35.1043946841412, 136.855245248177 35.104296149472, 136.854937741918 35.1051288760709, 136.854750839423 35.1053912597423, 136.854695115363 35.105452730345)) ^^http://www.opengis.net/ont/geosparql#wktLiteral