premise: There are a group of track runners bracing to take off.
hypothesis: The  track runners are sitting on an airplane
explanation_1: The track runners can be either bracing to take off or sitting on an airplane.
explanation_2: runners cannot be at track and in airplane simultaneously
explanation_3: runners can't be bracing to take off while sitting
premise_logic: exists p1 x1 e1 p2 x2 x3 x4 x5.((x1 = x2) & Topic(e1,p2) & Actor(e1,x5) & v_brace(e1) & exists e2 s1.(a_off(s1) & Manner(e2,s1) & Actor(e2,x5) & v_take(e2)) & (x2 = x5) & of(x2,x3) & n_runner(x3) & of(x3,x4) & n_track(x4) & n_group(x2))
hypothesis_logic: exists e1 x1 x2 x3.(n_runner(x1) & of(x1,x2) & n_track(x2) & on(e1,x3) & n_airplane(x3) & Actor(e1,x1) & v_sit(e1))
premise_sim: exists x1 e1 p2 x2 x3 x4 x5.(v_brace(e1) & of(x3,x4) & of(x2,x3) & n_track(x4) & n_runner(x3) & n_group(x2) & exists e2 s1.(v_take(e2) & a_off(s1) & Manner(e2,s1) & Actor(e2,x5)) & Topic(e1,p2) & Actor(e1,x5) & (x2 = x5) & (x1 = x2))
hypothesis_sim: exists e1 x1 x2 x3.(v_sit(e1) & on(e1,x3) & of(x1,x2) & n_track(x2) & n_runner(x1) & n_airplane(x3) & Actor(e1,x1))