A man cuts the grass along side a wall of hedges.
Nobody is cutting the grass.
Nobody indicates no person, while a man indicates one person.
exists e1 x1 x2.(n_grass(x2) & all x3.(n_wall(x3) -> exists x4 x5.(along(e1,x4) & of(x4,x5) & n_hedge(x5) & for(x4,x3) & n_side(x4))) & Theme(e1,x2) & Actor(e1,x1) & v_cut(e1) & n_man(x1))
exists x2.(n_grass(x2) & -exists e1 x1.(Theme(e1,x2) & Actor(e1,x1) & v_cut(e1) & n_person(x1)))