A man in a green shirt is doing a trick on a skateboard.
The man is sitting on a bench in the park.
Doing a trick on a skateboard is different then sitting on a bench
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_do(e1) & on(x3,x4) & n_skateboard(x4) & n_trick(x3) & in(x1,x2) & n_shirt(x2) & a_green(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(n_park(x3) & n_man(x1) & in(e1,x3) & on(e1,x2) & n_bench(x2) & Actor(e1,x1) & v_sit(e1))