The field is fenced in.
There exists some fencing and a piece of land.
Although the field is fenced in, it does not imply there is a piece of land.
exists e1 s1 x1.(n_field(x1) & a_in(s1) & Manner(e1,s1) & Theme(e1,x1) & v_fence(e1))
exists e1 x1 x2 x3 x4 x5.(Theme(e1,x2) & Actor(e1,x1) & v_exist(e1) & subset_of(x4,x2) & of(x4,x5) & n_land(x5) & n_piece(x4) & subset_of(x3,x2) & n_fencing(x3))