Children sitting in front of a Christmas tree with presents in their hands.
The children are holding assault rifles.
Assault rifles are not presents.
exists e1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & in(e1,x7) & n_hand(x7) & of(x7,x1) & n_thing(x1) & with(e1,x6) & n_present(x6) & in(e1,x3) & of(x3,x4) & n_tree(x4) & (x4 = x5) & ne_tim_christmas(x5) & n_front(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_child(x1))
exists e1 x1 x2 x3.(n_child(x1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_rifle(x2) & of(x2,x3) & n_assault(x3))