A black and white dog is playing with a white ball.
A black and white dog is playing with a red ball.
The dogs can only play with one ball at a time, so they play with the white ball and then the red ball.
exists e1 s1 s2 s3 x1 x2.(with(e1,x2) & n_ball(x2) & a_white(s3) & Theme(s3,x2) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & a_white(s2) & Theme(s2,x1) & a_black(s1) & Theme(s1,x1))
exists e1 s1 s2 s3 x1 x2.(with(e1,x2) & n_ball(x2) & a_red(s3) & Theme(s3,x2) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & a_white(s2) & Theme(s2,x1) & a_black(s1) & Theme(s1,x1))