premise: A helmeted male airborne on a bike on a dirt road.
hypothesis: The man fell off his bike.
explanation_1: If the man fell off his bike, it is not possible for him to be airborne on his bike simultaneously.
explanation_2: The man cannot be airborne on the bike while also falling off of it.
explanation_3: The man can be either on or off the bike.
premise_logic: exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x3) & on(x3,x4) & n_road(x4) & of(x4,x5) & n_dirt(x5) & n_bike(x3) & n_airborne(x1) & of(x1,x2) & n_male(x2) & a_helmeted(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 s1 x1 x2.(n_bike(x2) & of(x2,x1) & n_male(x1) & n_man(x1) & a_off(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_fall(e1))
premise_sim: exists s1 x1 x2 x3 x4 x5.(on(x3,x4) & on(x1,x3) & of(x4,x5) & of(x1,x2) & n_road(x4) & n_male(x2) & n_dirt(x5) & n_bike(x3) & n_airborne(x1) & a_topic(x1) & a_helmeted(s1) & Theme(s1,x1))
hypothesis_sim: exists e1 s1 x1 x2.(v_fall(e1) & of(x2,x1) & n_man(x1) & n_male(x1) & n_bike(x2) & a_off(s1) & Theme(e1,x2) & Manner(e1,s1) & Actor(e1,x1))