A black and a black dog are running.
The dogs are sitting.
The black dogs cannot be running and sitting at the same time.
exists e1 e2 s1 s2 s3 x1 x2.(Actor(e2,x2) & v_run(e2) & n_dog(x2) & a_black(s3) & Theme(s3,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & a_black(s2) & Theme(s2,x1) & a_black(s1) & Theme(s1,x1))
exists e1 x1.(n_dog(x1) & Actor(e1,x1) & v_sit(e1))