The large black dog is walking in the water.
A dog is swimming in a pond.
Answer :Just because the walking in the water does not mean the dog is swimming.
exists e1 s1 s2 x1 x2.(n_water(x2) & n_dog(x1) & a_black(s2) & Theme(s2,x1) & a_large(s1) & Theme(s1,x1) & in(e1,x2) & Actor(e1,x1) & v_walk(e1))
exists e1 x1 x2.(in(e1,x2) & n_pond(x2) & Actor(e1,x1) & v_swim(e1) & n_dog(x1))