The gray and white dog is walking on gravel.
PEOPL;E WERE ON GRASS
A dog is not a person.
exists e1 s1 s2 x1 x2.(n_dog(x1) & a_white(s2) & Theme(s2,x1) & a_gray(s1) & Theme(s1,x1) & on(e1,x2) & n_gravel(x2) & Actor(e1,x1) & v_walk(e1))
exists s1 x1 x2 x3 x4 x5.(ne_nam_grass(x2) & (x2 = x5) & ne_nam_on(x5) & (x2 = x4) & ne_nam_were(x4) & (x2 = x3) & ne_nam_e(x3) & ne_nam_peopl(x1) & a_topic(s1) & subset_of(x2,s1) & subset_of(x1,s1))