A black and brown dog walks on the frozen surface of a pond, holding a stick.
The dog is swimming across the pond.
as the pond is frozen the dog is not swimming.
exists e2 e1 s1 s2 s3 x1 x2 x3 x4.(n_surface(x2) & a_frozen(s3) & Theme(s3,x2) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_hold(e2) & n_stick(x4) & on(e1,x2) & of(x2,x3) & n_pond(x3) & Actor(e1,x1) & v_walk(e1) & n_dog(x1) & a_brown(s2) & Theme(s2,x1) & a_black(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_pond(x2) & n_dog(x1) & across(e1,x2) & Actor(e1,x1) & v_swim(e1))