A woman is standing up on a bus.
The woman is sitting on a bench.
A person cannot be standing up on a bus while sitting on a bench.
exists e1 s1 x1 x2.(on(e1,x2) & n_bus(x2) & a_up(s1) & Manner(e1,s1) & Actor(e1,x1) & v_stand(e1) & n_woman(x1))
exists e1 x1 x2.(n_woman(x1) & on(e1,x2) & n_bench(x2) & Actor(e1,x1) & v_sit(e1))