メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.05627910026 38.3997441496532, 141.056188175888 38.3998520119384, 141.055164696983 38.4007571394491, 141.054413821941 38.4013030601746, 141.054037831007 38.4014083630633, 141.053415462619 38.4017506220483, 141.053187601037 38.4018167896911, 141.052997465809 38.4017871635061, 141.053946214307 38.401288881332, 141.054082601332 38.4011510919399, 141.055269464372 38.4002006180193, 141.056027587549 38.3995231985553, 141.05627910026 38.3997441496532)) ^^http://www.opengis.net/ont/geosparql#wktLiteral