premise: Two children are climbing stairs which lead to an airplane.
hypothesis: Two children board an airplane.
explanation_1: The children who are climbing stairs to enter an airplane are boarding an airplane.
premise_logic: exists e2 e1 x1 x2 x3 x4.(Theme(e2,x2) & Actor(e2,x1) & v_climb(e2) & to(e1,x4) & n_airplane(x4) & Actor(e1,x3) & v_lead(e1) & (x2 = x3) & n_stair(x2) & n_child(x1) & card_eq_2(x1))
hypothesis_logic: all x1.(n_airplane(x1) -> exists x2 x3.(a_topic(x2) & for(x2,x1) & n_board(x2) & of(x2,x3) & n_child(x3) & card_eq_2(x2)))
premise_sim: exists e2 e1 x1 x2 x3 x4.(v_lead(e1) & v_climb(e2) & to(e1,x4) & n_stair(x2) & n_child(x1) & n_airplane(x4) & card_eq_2(x1) & Theme(e2,x2) & Actor(e2,x1) & Actor(e1,x3) & (x2 = x3))
hypothesis_sim: all x1.(exists x2 x3.(of(x2,x3) & n_child(x3) & n_board(x2) & for(x2,x1) & card_eq_2(x2) & a_topic(x2)) | -n_airplane(x1))