A white dog is playing with a plastic bag.
A white dog is playing.
Sentence 2 confirms that a white dog is playing.
exists e1 s1 s2 x1 x2.(with(e1,x2) & n_bag(x2) & a_plastic(s2) & Theme(s2,x2) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & a_white(s1) & Theme(s1,x1))
exists e1 s1 x1.(Actor(e1,x1) & v_play(e1) & n_dog(x1) & a_white(s1) & Theme(s1,x1))