premise: There is a group of children getting their picture taken with presents.
hypothesis: Children opening presents.
explanation_1: A group of children can also be simply described collectively as 'Children', the fact that they are with presents implies that they are opening presents
explanation_2: Children have the presents to open.
explanation_3: Children are opening presents in order to take the picture
premise_logic: exists p1 x1 e1 e2 x2 x3 x4 x5 x6 x7.((x1 = x2) & of(x2,x3) & Theme(e2,x5) & Actor(e2,x4) & v_get(e2) & with(e1,x7) & n_present(x7) & Theme(e1,x6) & v_take(e1) & (x5 = x6) & n_picture(x5) & of(x5,x2) & n_thing(x2) & (x3 = x4) & n_child(x3) & n_group(x2))
hypothesis_logic: exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_open(e1) & n_present(x3) & (x1 = x2) & n_child(x1))
premise_sim: exists x1 e1 e2 x2 x3 x4 x5 x6 x7.(with(e1,x7) & v_take(e1) & v_get(e2) & of(x5,x2) & of(x2,x3) & n_thing(x2) & n_present(x7) & n_picture(x5) & n_group(x2) & n_child(x3) & Theme(e2,x5) & Theme(e1,x6) & Actor(e2,x4) & (x5 = x6) & (x3 = x4) & (x1 = x2))
hypothesis_sim: exists e1 x1 x2 x3.(v_open(e1) & n_present(x3) & n_child(x1) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & (x1 = x2))