Three children play on corn stacks.
Three children play on corn stacks at their family farm.
The corn stacks don't necessarily have to be at their family farm.
exists e1 x1 x2 x3.(on(e1,x2) & n_stack(x2) & of(x2,x3) & n_corn(x3) & Actor(e1,x1) & v_play(e1) & n_child(x1) & card_eq_3(x1))
exists e1 x1 x2 x3 x4 x5.(at(e1,x4) & n_farm(x4) & of(x4,x5) & n_family(x5) & of(x4,x1) & n_thing(x1) & on(e1,x2) & n_stack(x2) & of(x2,x3) & n_corn(x3) & Actor(e1,x1) & v_play(e1) & n_child(x1) & card_eq_3(x1))