A woman running after a child on the beach.
A woman is driving with a child.
Running and driving are different activities.
exists e1 x1 x2 x3 x4.(n_beach(x4) & a_topic(x1) & on(e1,x4) & after(e1,x3) & n_child(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_woman(x1))
exists e1 x1 x2.(with(e1,x2) & n_child(x2) & Actor(e1,x1) & v_drive(e1) & n_woman(x1))