メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.882516532018 43.01188062425, 142.881642828726 43.0126412688475, 142.88158750383 43.0126901005573, 142.880558357529 43.0120123032307, 142.880588009513 43.0119833053942, 142.881316887126 43.0113421119158, 142.88134732742 43.0113152889505, 142.881379240887 43.0112872632797, 142.88139600293 43.0112724722715, 142.881461361882 43.0112149847134, 142.882143617056 43.0116211651426, 142.882124466098 43.0116390040558, 142.882516532018 43.01188062425)) ^^http://www.opengis.net/ont/geosparql#wktLiteral