A large brown dog and a small brown dog are standing near each other beside a body of water.
The mother dog is playing with her pup next to the pond.
Just because they are large and small dogs does not mean they are mother dog and her pup.
exists e1 s1 s2 s3 s4 x1 x2 x3.(all x4.(n_other(x4) -> exists x5 x6.(beside(e1,x5) & of(x5,x6) & n_water(x6) & n_body(x5) & near(e1,x4))) & Actor(e1,x1) & v_stand(e1) & subset_of(x3,x1) & n_dog(x3) & a_brown(s4) & Theme(s4,x3) & a_small(s3) & Theme(s3,x3) & subset_of(x2,x1) & n_dog(x2) & a_brown(s2) & Theme(s2,x2) & a_large(s1) & Theme(s1,x2))
exists e1 x1 x2 x3 x4 x5.(n_pond(x5) & n_pup(x3) & of(x3,x1) & n_female(x1) & n_dog(x1) & of(x1,x2) & n_mother(x2) & with(e1,x3) & to(x4,x5) & next(x3,x4) & n_thing(x4) & Actor(e1,x1) & v_play(e1))