A greyhound running a race.
A greyhound is outside
The greyhound must be outside if the greyhound is running a race.
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_run(e1) & n_race(x3) & (x1 = x2) & n_greyhound(x1))
exists s1 x1.(Theme(s1,x1) & a_outside(s1) & n_greyhound(x1))