A kid is doing a skateboard trick at a skate park.
The kid is seated on a bench.
One can not do a skateboard trick and seated at the same time.
exists e1 x1 x2 x3 x4 x5.(at(e1,x4) & n_park(x4) & of(x4,x5) & n_skate(x5) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_trick(x2) & of(x2,x3) & n_skateboard(x3) & n_kid(x1))
exists e1 x1 x2.(n_kid(x1) & on(e1,x2) & n_bench(x2) & Theme(e1,x1) & v_seat(e1))