A man and a brown dog in motion in the grass.
A man plays with his pet in the backyard.
The man and dog in motion doesn't mean that they are playing or that the man is owner, for all we know, the dog could be chasing the man.
exists s1 s2 x1 x2 x3 x4.(n_grass(x4) & a_topic(s1) & subset_of(x2,s1) & in(x2,x3) & in(x3,x4) & n_motion(x3) & n_dog(x2) & a_brown(s2) & Theme(s2,x2) & subset_of(x1,s1) & n_man(x1))
exists e1 x1 x2 x3.(n_backyard(x3) & with(e1,x2) & in(x2,x3) & n_pet(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_play(e1) & n_man(x1))