A truck has just crashed into the back of another truck.
Two truckers crash on a busy freeway.
The fact that a truck has just crashed into the back of another truck doesn't imply that the two truckers crashed on a busy freeway.
exists e1 s1 x1 x2 x3.(n_back(x2) & a_just(s1) & Manner(e1,s1) & into(e1,x2) & of(x2,x3) & n_truck(x3) & -(x3 = x1) & n_truck(x1) & n_truck(x1) & Actor(e1,x1) & v_crash(e1))
exists s1 x1 x2 x3.(a_topic(x1) & on(x1,x3) & n_freeway(x3) & a_busy(s1) & Theme(s1,x3) & n_crash(x1) & of(x1,x2) & n_trucker(x2) & card_eq_2(x1))