A guy holds a bunch of grass.
A guy is eating grass
Just because a guy is holding grass doesn't mean he eating it.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & of(x2,x3) & n_grass(x3) & n_bunch(x2) & n_guy(x1))
exists p1 x1.(exists s1 x2.((x1 = x2) & n_grass(x2) & a_eating(s1) & Theme(s1,x2)) & n_guy(x1))