メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.36642333151 42.3365497163413, 142.366007286412 42.3372231498956, 142.365974419621 42.3373042145024, 142.365842496405 42.3376740533576, 142.365682720948 42.3381143993784, 142.364420143697 42.3382979899914, 142.364584919221 42.3378712855994, 142.364867903504 42.3370265048405, 142.365125884797 42.3362447708733, 142.365598799955 42.3363135078131, 142.365618239765 42.3363196546325, 142.365773119689 42.3363686199359, 142.36642333151 42.3365497163413)) ^^http://www.opengis.net/ont/geosparql#wktLiteral