A man is walking towards an orange van.
A large vehicle with a person approaching it.
a man is a person. a van is a vehicle. if a person is walking towards it, they are approaching it.
exists e1 x1 x2 x3.(towards(e1,x2) & n_van(x2) & of(x2,x3) & n_orange(x3) & Actor(e1,x1) & v_walk(e1) & n_man(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & with(x1,x2) & Theme(e1,x1) & Actor(e1,x3) & v_approach(e1) & n_thing(x1) & (x2 = x3) & n_person(x2) & n_vehicle(x1) & a_large(s1) & Theme(s1,x1))