The white dog is wading in the pond atop the mountain.
The dog is crossing the pond.
Wading in a pond does not mean the dog is crossing the pond, but that the dog is standing in the pond.
exists e1 s1 x1 x2 x3.(n_mountain(x3) & n_pond(x2) & n_dog(x1) & a_white(s1) & Theme(s1,x1) & atop(e1,x3) & in(e1,x2) & Actor(e1,x1) & v_wade(e1))
exists e1 x1 x2.(n_pond(x2) & n_dog(x1) & Theme(e1,x2) & Actor(e1,x1) & v_cross(e1))