premise: A person performing a snowboarding trick on a high mountain.
hypothesis: A man is beating his friend in a snowboarding race.
explanation_1: A person could be a man or a woman and performing a trick does not mean he is necessarily in a race.
explanation_2: Performing a trick does not mean someone is beating someone else.  A man can perform a snowboarding trick without being in a race.
explanation_3: People can snowboard without being in a race.
premise_logic: exists e1 e2 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_perform(e2) & on(x3,x4) & n_mountain(x4) & a_high(s1) & Theme(s1,x4) & n_trick(x3) & Actor(e1,x3) & v_snowboard(e1) & (x1 = x2) & n_person(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(in(e1,x3) & n_race(x3) & of(x3,x4) & n_snowboarding(x4) & Theme(e1,x2) & Actor(e1,x1) & v_beat(e1) & n_friend(x2) & of(x2,x1) & n_male(x1) & n_man(x1))