Two child share a swing in a playground.
Two children are on a merry go round.
A swing is not on a merry go round.
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 p1 x1.(exists s1 x2 x3.(on(x1,x2) & n_round(x2) & of(x2,x3) & n_go(x3) & a_merry(s1) & Theme(s1,x2)) & n_child(x1) & card_eq_2(x1))