River.
British rivers http://www.britannia.com/maps/mapfram2.html
has_instance River_thames.
has_part River_stretch.
has_property Water_flow.
has_type Braided_river.
is_bigger_than Stream.
is_part_of Inland_waterways.
Lower river Clay_aggregate.
Middle river Sand_aggregate.
next_to Flood_basin.
River basin toolkit http://www.geodata.soton.ac.uk/geodataweb/technologies/web/?link=project.php&id=108
Upper river Stone_aggregate.
   
 
Vr.155, Dec 2010     Readme      List of Objects ..