Several men are watching something through a fence.
They are watching a dog
Sentence one does not say that they are watching a dog through the fence.
exists e1 s1 x1 x2 x3.(through(e1,x3) & n_fence(x3) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_thing(x2) & n_man(x1) & a_several(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_dog(x2))