premise: Four people stand next to some bikes while one of them points.
hypothesis: Four people are standing and one of them is pointing at an airplane in the sky.
explanation_1: They may be pointing at something else, not only an airplane..
explanation_2: People can at things other than an airplane.
explanation_3: The person pointing could be pointing to anything, not necessarily at an airplane in the sky.
premise_logic: exists e1 p1 x1 x2 x3.(Time(e1,x3) & n_point(x3) & while(e1,x2) & of(x2,x1) & n_thing(x1) & n_thing(x2) & card_eq_1(x2) & exists s1 x4.(to(s1,x4) & n_bike(x4) & Theme(s1,x1) & a_next(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_stand(e1) & n_people(x1) & card_eq_4(x1))
hypothesis_logic: exists e1 e2 x1 x2 x3 x4.(n_sky(x4) & at(e2,x3) & in(x3,x4) & n_airplane(x3) & Actor(e2,x2) & v_point(e2) & of(x2,x1) & n_thing(x1) & n_thing(x2) & card_eq_1(x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1) & card_eq_4(x1))