premise: Two bikers a riding along a street in a marathon as the passersby clap for them.
hypothesis: A biker forgets to sign up for the race.
explanation_1: If the biker forgets to sign up for the race then he is not riding along a street in a marathon.
explanation_2: If a biker forgets to sign up for a race then the biker cannot ride along in a marathon.
explanation_3: Bikers that forgets to sign up for the race cannot be riding along a street in a marathon.
premise_logic: exists s1 x5.(n_clap(x5) & a_passersby(s1) & Theme(s1,x5) & all x1.((n_thing(x1) & n_riding(x1)) -> exists x2 x3 x4.(a_topic(x2) & in(x2,x4) & as(x4,x5) & for(x5,x1) & n_marathon(x4) & along(x2,x3) & n_street(x3) & for(x2,x1) & n_biker(x2) & card_eq_2(x2))))
hypothesis_logic: exists e1 p1 x1 x2.(n_race(x2) & Topic(e1,p1) & Actor(e1,x1) & v_forget(e1) & exists e2 s1.(a_up(s1) & Manner(e2,s1) & for(e2,x2) & Actor(e2,x1) & v_sign(e2)) & n_biker(x1))