OE @821 (89.3%) on 09-mar-2014 [ ] using (mississippi, rock_river)
CPL @1104 (93.8%) on 18-mar-2018 [ "arg2 meets the mighty arg1" "arg2 which eventually flows into arg1" "arg2 flows into the mighty arg1" "arg2 near the confluence with arg1" ] using (mississippi, rock_river)