premise: A well safety equipment biker racing on the trail in a wooded area with number 569 on his bike
hypothesis: A snowboarder falls
explanation_1: the sport in question is either biker racing or it is snow boarder competition.
explanation_2: A biker is different than a snowboarder. Usually they happen during different seasons.
explanation_3: There is either a biker or a snowboarder.
premise_logic: exists s1 s2 x1 x2 x3 x4 x5 x6 x7 x8.(n_bike(x8) & of(x8,x5) & n_male(x5) & n_trail(x5) & a_topic(x1) & on(x1,x5) & on(x5,x8) & with(x5,x7) & n_number(x7) & card_eq_569(x7) & in(x5,x6) & n_area(x6) & a_wooded(s2) & Theme(s2,x6) & n_racing(x1) & of(x1,x4) & n_biker(x4) & of(x1,x3) & n_equipment(x3) & of(x1,x2) & n_safety(x2) & a_well(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_fall(e1) & n_snowboarder(x1))
premise_sim: exists s1 s2 x1 x2 x3 x4 x5 x6 x7 x8.(with(x5,x7) & on(x5,x8) & on(x1,x5) & of(x8,x5) & of(x1,x4) & of(x1,x3) & of(x1,x2) & n_trail(x5) & n_safety(x2) & n_racing(x1) & n_number(x7) & n_male(x5) & n_equipment(x3) & n_biker(x4) & n_bike(x8) & n_area(x6) & in(x5,x6) & card_eq_569(x7) & a_wooded(s2) & a_well(s1) & a_topic(x1) & Theme(s2,x6) & Theme(s1,x1))
hypothesis_sim: exists e1 x1.(v_fall(e1) & n_snowboarder(x1) & Actor(e1,x1))