Children are wearing life-jackets on an inflatable boat with paddles.
Children are sitting on a bench in the park.
The children cannot be sitting in the park if they are in a boat.
exists e1 s1 x1 x2 x3 x4.(on(e1,x3) & with(x3,x4) & n_paddle(x4) & n_boat(x3) & a_inflatable(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_life-jacket(x2) & n_child(x1))
exists e1 x1 x2 x3.(n_park(x3) & in(e1,x3) & on(e1,x2) & n_bench(x2) & Actor(e1,x1) & v_sit(e1) & n_child(x1))