メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.337584922117 43.06677949593, 141.337546784766 43.066951357787, 141.337466903307 43.0673117903544, 141.337112557905 43.0672600829085, 141.337002194729 43.0672440805488, 141.335902396331 43.0670844346875, 141.335922085865 43.0669988601271, 141.33601381768 43.0665838768422, 141.336056580067 43.0664238678627, 141.336104824637 43.0662434371878, 141.336165361826 43.066016897586, 141.33654112934 43.0660594266808, 141.337723604809 43.0662120597423, 141.337584922117 43.06677949593)) ^^http://www.opengis.net/ont/geosparql#wktLiteral