Running in the Olympics.
People are running from a lion.
There is not a lion at the Olymipics.
exists e1 x1 x2.(n_olympics(x2) & in(e1,x2) & Actor(e1,x1) & v_run(e1) & n_thing(x1))
exists e1 x1 x2.(from(e1,x2) & n_lion(x2) & Actor(e1,x1) & v_run(e1) & n_people(x1))