A white dog snarls at a black dog in front of a set of steps.
These dogs are about to fight.
A dog snarls does not imply about to fight.
exists s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & at(x1,x3) & in(x3,x4) & of(x4,x5) & of(x5,x6) & n_step(x6) & n_set(x5) & n_front(x4) & n_dog(x3) & a_black(s2) & Theme(s2,x3) & n_snarl(x1) & of(x1,x2) & n_dog(x2) & a_white(s1) & Theme(s1,x1))
exists p1 s1 x1.(n_dog(x1) & Topic(s1,p1) & Actor(s1,x1) & a_about(s1) & exists e1.(Actor(e1,x1) & v_fight(e1)))