A black and white dog chasing a tan and white dog across a path.
The dogs are competing in a dog race.
The dogs running aren't necessarily competing in a race.
exists e1 s1 s2 s3 s4 x1 x2 x3 x4.(a_topic(x1) & across(e1,x4) & n_path(x4) & Theme(e1,x3) & Actor(e1,x2) & v_chase(e1) & n_dog(x3) & a_white(s4) & Theme(s4,x3) & a_tan(s3) & Theme(s3,x3) & (x1 = x2) & n_dog(x1) & a_white(s2) & Theme(s2,x1) & a_black(s1) & Theme(s1,x1))
exists e1 x1 x2.(in(e1,x2) & n_race(x2) & of(x2,x1) & n_dog(x1) & n_dog(x1) & Actor(e1,x1) & v_compete(e1))