There is a boat in the background to the left of the orange utility truck.
The boat is on
There is nothing indicating that the boat is on anything.
exists p1 x1 x3 x4 x5 x6 x7.(n_truck(x5) & of(x5,x7) & n_utility(x7) & of(x5,x6) & n_orange(x6) & n_left(x4) & n_background(x3) & exists x2.((x1 = x2) & to(x2,x4) & of(x4,x5) & in(x2,x3) & n_boat(x2)))
exists s1 x1.(n_boat(x1) & Theme(s1,x1) & a_on(s1))