premise: A gray-haired man rides a bike in front of a bus advertising Ironman.
hypothesis: An older man rides a bike in front of a bus with a movie poster on it.
explanation_1: Just because a man has gray-haired doesn't mean he is older.
explanation_2: Just because there is a bus advertising Ironman it does not mean there is a movie poster on it.
explanation_3: Just because a man has gray hair does not mean he is an older man. Just because a bus is advertising Ironman does not mean it has a movie poster on it.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5 x6.(in(e1,x3) & of(x3,x4) & ne_nam_ironman(x4) & of(x4,x6) & n_advertising(x6) & of(x4,x5) & n_bus(x5) & n_front(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_man(x1) & a_gray-haired(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4 x5 x6.(in(e1,x3) & of(x3,x4) & with(x4,x5) & on(x5,x1) & n_thing(x1) & n_poster(x5) & of(x5,x6) & n_movie(x6) & n_bus(x4) & n_front(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))