A woman looking inside a locksmith store.
A woman is an alien.
Either the woman is looking inside a store or she is an alien, she cannot be both.
exists e1 x1 x2 x3 x4.(a_topic(x1) & inside(e1,x3) & n_store(x3) & of(x3,x4) & n_locksmith(x4) & Actor(e1,x2) & v_look(e1) & (x1 = x2) & n_woman(x1))
exists p1 x1.(exists x2.((x1 = x2) & n_alien(x2)) & n_woman(x1))