premise: A man and woman and two small children are sitting in the floor with wrapped Christmas presents.
hypothesis: The presents have all been opened.
explanation_1: Gifts can either be wrapped or opened.
explanation_2: Presents are either wrapped or opened.
explanation_3: The presents cannot have all been opened if they are still wrapped.
premise_logic: exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7.(n_floor(x5) & with(e1,x6) & n_present(x6) & (x6 = x7) & ne_tim_christmas(x7) & Theme(e2,x6) & v_wrap(e2) & in(e1,x5) & Actor(e1,x1) & v_sit(e1) & n_child(x4) & a_small(s1) & Theme(s1,x4) & card_eq_2(x4) & n_woman(x3) & subset_of(x4,x1) & subset_of(x3,x1) & of(x1,x2) & n_man(x2))
hypothesis_logic: exists e1 s1 x1.(n_present(x1) & a_all(s1) & Manner(e1,s1) & Theme(e1,x1) & v_open(e1))