premise: Male crowd surfing at a concert.
hypothesis: A man is at a football game.
explanation_1: One is either crowd surfing at a concert or is at a football game.
explanation_2: A football game is a sporting event, a concert is a music event.
explanation_3: A man at the concert cannot be at a football game at the same time.
premise_logic: exists s1 x1 x2 x3.(a_topic(x1) & at(x1,x3) & n_concert(x3) & n_surfing(x1) & of(x1,x2) & n_crowd(x2) & a_male(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 x1.(exists x2 x3.(at(x1,x2) & n_game(x2) & of(x2,x3) & n_football(x3)) & n_man(x1))