premise: Two skateboarders, one wearing a black t-shirt and the other wearing a white t-shirt, race each other.
hypothesis: Two skateboarders race.
explanation_1: If they race each other, than they race.
explanation_2: Two skateboarders race is the same as the skateboarders race each other.
explanation_3: If the people race each other then the skateboarders race.
premise_logic: exists e1 s1 x1 x2 x3 x5.(n_other(x5) & all x4.(n_other(x4) -> exists e2 s2 x6 x7.(Time(e2,x4) & Theme(e2,x6) & Actor(e2,x5) & v_wear(e2) & rel(x6,x7) & n_race(x7) & n_t-shirt(x6) & a_white(s2) & Theme(s2,x6))) & Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & n_t-shirt(x3) & a_black(s1) & Theme(s1,x3) & rel(x1,x2) & n_thing(x2) & card_eq_1(x2) & n_skateboarder(x1) & card_eq_2(x1))
hypothesis_logic: exists s1 x1 x2.(n_race(x1) & a_.(s1) & Theme(s1,x1) & of(x1,x2) & n_skateboarder(x2) & card_eq_2(x1) & a_topic(x1))