Brown dog chasing a pink ball.
A dog is playing fetch with his owner and chases the pink ball that was thrown.
The dog is not necessarily playing fetch, is not necessarily interacting with his owner in any way, and the ball was not necessarily thrown.
exists e1 s1 s2 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_chase(e1) & n_ball(x3) & a_pink(s2) & Theme(s2,x3) & (x1 = x2) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
exists e1 e3 e2 s1 x1 x2 x3 x4 x5 x6.(n_ball(x5) & a_pink(s1) & Theme(s1,x5) & Theme(e3,x5) & Actor(e3,x4) & v_chase(e3) & Theme(e2,x6) & v_throw(e2) & (x5 = x6) & n_dog(x4) & with(e1,x3) & n_owner(x3) & of(x3,x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_fetch(x2) & n_dog(x1))