The black dog is catching a ball, while the white one watches.
A white dog is jealous of a black dog's ball.
Just because the white dog is watching does not mean that he is jealous.
exists e1 s1 s2 x1 x2 x3.(n_watch(x3) & card_eq_1(x3) & a_white(s2) & Theme(s2,x3) & n_dog(x1) & a_black(s1) & Theme(s1,x1) & while(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_catch(e1) & n_ball(x2))
exists s1 s2 s3 x1 x2 x3.(of(s2,x3) & n_ball(x3) & of(x3,x2) & n_dog(x2) & a_black(s3) & Theme(s3,x2) & Theme(s2,x1) & a_jealous(s2) & n_dog(x1) & a_white(s1) & Theme(s1,x1))