a guy, outside, mowing the grass.
A person cutting something.
A person mowing the grass is not necessarily cutting the grass.
exists e1 x1 x2 x3.(n_grass(x3) & Theme(e1,x3) & Actor(e1,x1) & v_mow(e1) & rel(x1,x2) & n_outside(x2) & n_guy(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_cut(e1) & n_thing(x3) & (x1 = x2) & n_person(x1))