A small white dog climbs over a log.
A black dog is swimming.
A dog is swimming or climbs over a log.
exists s1 s2 x1 x2 x3.(a_topic(x1) & over(x1,x3) & n_log(x3) & n_climb(x1) & of(x1,x2) & n_dog(x2) & a_white(s2) & Theme(s2,x1) & a_small(s1) & Theme(s1,x1))
exists p1 s1 x1.(exists x2.((x1 = x2) & n_swimming(x2)) & n_dog(x1) & a_black(s1) & Theme(s1,x1))