メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.730533492744 35.834632859818, 140.729094591939 35.8361435148261, 140.728660112494 35.8359256181188, 140.728197623529 35.8356928234225, 140.729367765718 35.8340738264121, 140.729381658638 35.834055872822, 140.729742687213 35.8335871876881, 140.731000166477 35.834200718881, 140.730533492744 35.834632859818)) ^^http://www.opengis.net/ont/geosparql#wktLiteral