メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.765114774457 43.2053167627249, 141.764856454265 43.2055828453823, 141.764790842749 43.2056552162671, 141.764610269334 43.2058762667017, 141.763596136624 43.205353221649, 141.763847891529 43.2050975220556, 141.764148800313 43.2047650930074, 141.764721662621 43.20504257648, 141.764808995293 43.2049468078342, 141.765249662549 43.2051644410651, 141.765114774457 43.2053167627249)) ^^http://www.opengis.net/ont/geosparql#wktLiteral