A black and brown dog swimming in a lake.
Dog in the lake
In a lake is the same as in the lake
exists s1 s2 x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_lake(x3) & n_swimming(x1) & of(x1,x2) & n_dog(x2) & a_brown(s2) & Theme(s2,x1) & a_black(s1) & Theme(s1,x1))
exists s1 x1.(n_lake(x1) & ne_nam_dog(s1) & a_topic(s1) & in(s1,x1))