The mountaintop is filled with snow.
The mountain has snow
Its hard for the whole mountain to be covered with snow.
exists e1 x1 x2.(n_mountaintop(x1) & with(e1,x2) & n_snow(x2) & Theme(e1,x1) & v_fill(e1))
exists e1 x1 x2.(n_mountain(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_snow(x2))