Two child share a swing in a playground.
Two children are swinging.
Saying that the kids share a swing implies that the children are swinging.
all x1.(n_swing(x1) -> exists x2 x3 x4.(a_topic(x2) & in(x2,x4) & n_playground(x4) & for(x2,x1) & n_share(x2) & of(x2,x3) & n_child(x3) & card_eq_2(x2)))
exists e1 x1.(Actor(e1,x1) & v_swing(e1) & n_child(x1) & card_eq_2(x1))