Two people sitting on a dock.
The people are thinking about fishing.
Just because people are sitting on a dock it does not mean they are thinking about fishing.
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_dock(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_people(x1) & about(e1,x2) & n_fishing(x2) & Actor(e1,x1) & v_think(e1))