The black dog is biting the ear of the yellow dog.
two dogs are in a fight
All dogs are not black and yellow.  Dogs bite for when excited and not necessarily due to a fight.
exists e1 s1 s2 x1 x2.(n_dog(x1) & n_dog(x1) & a_yellow(s2) & Theme(s2,x1) & n_ear(x2) & a_black(s1) & Theme(s1,x1) & Theme(e1,x2) & Actor(e1,x1) & v_bite(e1) & of(x2,x1))
exists p1 x1.(exists x2.(in(x1,x2) & n_fight(x2)) & n_dog(x1) & card_eq_2(x1))