A truck has just crashed into the back of another truck.
A truck swerved on an icy road and hit another truck in the back.
The fact that a truck has just crashed into the back of another truck doesn't imply that a truck swerved on an icy road and that caused the accident.
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 e1 e2 x1 x2 x3 x4 x5 x6 x7 x8.(n_back(x8) & a_topic(x5) & in(e2,x8) & Theme(e2,x7) & Actor(e2,x6) & v_hit(e2) & n_truck(x7) & -(x7 = x1) & n_truck(x1) & n_truck(x1) & (x5 = x6) & n_truck(x5) & a_topic(x1) & on(e1,x3) & n_road(x3) & of(x3,x4) & n_icy(x4) & Theme(e1,x2) & v_swerve(e1) & (x1 = x2))