The field is fenced in.
The fence surrounding the field is tall.
There are too many different kind of fence to assume that it has to be tall.
exists e1 s1 x1.(n_field(x1) & a_in(s1) & Manner(e1,s1) & Theme(e1,x1) & v_fence(e1))
exists e1 s1 x1 x2 x3.(n_field(x3) & n_fence(x1) & Theme(s1,x1) & a_tall(s1) & Theme(e1,x3) & Actor(e1,x2) & v_surround(e1) & (x1 = x2))