メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.401101551256 43.0394492571025, 141.401349267567 43.0395633401484, 141.40184785069 43.0398065798496, 141.402388355876 43.0400693980254, 141.402404458283 43.040076761363, 141.403040018905 43.0403651767387, 141.403453030431 43.0402080880644, 141.404652598874 43.0397820239298, 141.405105293054 43.0401913826171, 141.403239167922 43.0408810481157, 141.401960908631 43.0413306371074, 141.401674209155 43.0409275596237, 141.401397623711 43.0405422090021, 141.401024644902 43.040041292531, 141.40070412206 43.0396026556791, 141.400343050207 43.0391082259187, 141.401101551256 43.0394492571025)) ^^http://www.opengis.net/ont/geosparql#wktLiteral