A father and daughter dance at her wedding.
The father is smiling.
just because a father and daughter are dancing doesn't imply the father is smiling.
exists x1 x2 x3 x4.(a_topic(x1) & at(x1,x4) & n_wedding(x4) & of(x4,x1) & n_female(x1) & n_dance(x1) & of(x1,x3) & n_daughter(x3) & of(x1,x2) & n_father(x2))
exists e1 x1.(n_father(x1) & Actor(e1,x1) & v_smile(e1))