Two adults and two children dressed in skeleton costumes.
A shopping cart sits in a parking lot, alone.
If the shopping cart sits in a parking lot a lone then there are no adults and children.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(s1) & in(e1,x4) & n_costume(x4) & of(x4,x5) & n_skeleton(x5) & Theme(e1,x3) & v_dress(e1) & (s1 = x3) & n_child(x2) & card_eq_2(x2) & n_adult(x1) & subset_of(x2,s1) & subset_of(x1,s1) & card_eq_2(s1))
exists e1 s1 x1 x2 x3 x4.(a_alone(s1) & Manner(e1,s1) & in(e1,x3) & n_lot(x3) & of(x3,x4) & n_parking(x4) & Actor(e1,x1) & v_sit(e1) & n_cart(x1) & of(x1,x2) & n_shopping(x2))