A man wearing suspenders in standing on a train.
The man is riding an airplane.
A man can't be on a train if he is on an airplane.
exists e2 e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,e2) & on(e2,x4) & n_train(x4) & Actor(e2,x2) & v_stand(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_suspenders(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_airplane(x2))