メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.905342625623 43.0995286288797, 142.906345217674 43.0996982902707, 142.906786205952 43.0997729138422, 142.906657657097 43.1002493634962, 142.90679995961 43.1002735844567, 142.907232737938 43.1003471983283, 142.907223065193 43.1003761600259, 142.907064181999 43.1009596146185, 142.907019509802 43.1011036960552, 142.906486675233 43.1010168698811, 142.905589645889 43.1008706585535, 142.904946633494 43.1007658887808, 142.903748318777 43.1005635742441, 142.903781857349 43.1004549346311, 142.904130867207 43.0993235118429, 142.905342625623 43.0995286288797)) ^^http://www.opengis.net/ont/geosparql#wktLiteral