A dog runs outside.
The dog is sitting on a couch outside.
The dog cannot be simultaneously running and sitting.
exists e1 p1 x1.(exists s1.(Theme(s1,x1) & a_outside(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_run(e1) & n_dog(x1))
exists e1 x1 x2 x3.(n_dog(x1) & on(e1,x2) & n_outside(x2) & of(x2,x3) & n_couch(x3) & Actor(e1,x1) & v_sit(e1))