メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.342565344086 43.026549932426, 141.343118701378 43.0265917352437, 141.343134212976 43.0265929132626, 141.343841810322 43.0266411400894, 141.343962507437 43.0266469481723, 141.343861259922 43.0274172518689, 141.343801751437 43.0279632474124, 141.342992270385 43.0278997260657, 141.341822230174 43.0278314383871, 141.34190900911 43.0272836196023, 141.342000039013 43.0265124621292, 141.342565344086 43.026549932426)) ^^http://www.opengis.net/ont/geosparql#wktLiteral