Four workmen removing debris, from a hole in the ground.
A group of four were cleaning the ground.
Four workmen, not necessarily a group, removing debris, from a hole don't necessarily means they were cleaning the ground.
exists e1 x1 x2 x3 x4 x5.(n_ground(x5) & a_topic(x1) & in(e1,x5) & from(e1,x4) & n_hole(x4) & Theme(e1,x3) & Actor(e1,x2) & v_remove(e1) & n_debris(x3) & (x1 = x2) & n_workman(x1) & card_eq_4(x1))
exists e1 x1 x2 x3.(n_ground(x3) & Theme(e1,x3) & Actor(e1,x1) & v_clean(e1) & of(x1,x2) & n_thing(x2) & card_eq_4(x2) & n_group(x1))