メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.056661682422 42.9107847150739, 143.055981936914 42.9107894994213, 143.054403652223 42.9111542235527, 143.05359917235 42.9110956561049, 143.053692635315 42.9104466035581, 143.053704304426 42.9103654279312, 143.053746801134 42.9100943473058, 143.054544370956 42.9101448046968, 143.054544628216 42.9101425522368, 143.054574317193 42.9101448050512, 143.05608501979 42.9102492505512, 143.056718224551 42.9102929718088, 143.056666149812 42.9107456483195, 143.056661682422 42.9107847150739)) ^^http://www.opengis.net/ont/geosparql#wktLiteral