メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.359453316425 43.1175420433598, 141.359382864731 43.117837840395, 141.359290081795 43.1181441535939, 141.358295424881 43.1180179340377, 141.357825800527 43.1179523387697, 141.357755249149 43.1182480675766, 141.35731102185 43.1179483477038, 141.357536289139 43.1170032511118, 141.358039061282 43.1170664318109, 141.358138707149 43.1166645279191, 141.358803072769 43.1167450607712, 141.359085563735 43.1167876965392, 141.359632409266 43.1168592529466, 141.359453316425 43.1175420433598)) ^^http://www.opengis.net/ont/geosparql#wktLiteral