A man opens a gate in front of a train.
A dog runs through the boat.
A man is not a dog and a train is not a boat.
exists e1 x1 x2 x3 x4.(in(e1,x3) & of(x3,x4) & n_train(x4) & n_front(x3) & Theme(e1,x2) & Actor(e1,x1) & v_open(e1) & n_gate(x2) & n_man(x1))
exists e1 x1 x2.(n_boat(x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1))