メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.424945445668 43.0025928359082, 144.426152870242 43.0038871926466, 144.424924645168 43.0041850998947, 144.424689543288 43.0042241692468, 144.423546565023 43.004510665999, 144.421529271252 43.0049916748569, 144.419855242088 43.0037995013163, 144.418802389943 43.0031250316506, 144.420294833304 43.0018467478973, 144.421351302853 43.0009500148369, 144.421801231885 43.0006289427121, 144.422637238218 43.0001001781838, 144.423585254209 43.0011438404293, 144.424656647965 43.0022833974775, 144.424945445668 43.0025928359082)) ^^http://www.opengis.net/ont/geosparql#wktLiteral