A brown and white dog jumps over a dog hurdle.
A brown and white dog jumps over a hurdle in competition.
A dog that jumps over a dog hurdle is not necessarily a dog in competition.
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & over(x1,x3) & n_hurdle(x3) & of(x3,x4) & n_dog(x4) & n_jump(x1) & of(x1,x2) & n_dog(x2) & a_white(s2) & Theme(s2,x1) & a_brown(s1) & Theme(s1,x1))
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & over(x1,x3) & in(x3,x4) & n_competition(x4) & n_hurdle(x3) & n_jump(x1) & of(x1,x2) & n_dog(x2) & a_white(s2) & Theme(s2,x1) & a_brown(s1) & Theme(s1,x1))