A woman plays on a tire swing with two children in the park.
A mother is playing with her children at the park.
A woman  may  not be necessarily a mother.
exists e1 x1 x2 x3 x4 x5.(n_park(x5) & on(e1,x2) & with(x2,x4) & in(x4,x5) & n_child(x4) & card_eq_2(x4) & n_swing(x2) & of(x2,x3) & n_tire(x3) & Actor(e1,x1) & v_play(e1) & n_woman(x1))
exists e1 x1 x2 x3.(n_park(x3) & at(e1,x3) & with(e1,x2) & n_child(x2) & of(x2,x1) & n_female(x1) & Actor(e1,x1) & v_play(e1) & n_mother(x1))