メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.05542861105 42.9149245028316, 143.056121425197 42.9149645032473, 143.056048825239 42.9154803391595, 143.055944044998 42.916339059487, 143.055291560983 42.9162962427073, 143.054433625233 42.9162528948699, 143.054559572628 42.9154236371589, 143.054636052404 42.9148593866274, 143.055430955153 42.9149135851815, 143.05542861105 42.9149245028316)) ^^http://www.opengis.net/ont/geosparql#wktLiteral