premise: A snowboarder is grinding on a rail in a snowy, mountainous area.
hypothesis: The snowboarder is sitting in the lodge.
explanation_1: The snowboarder can't be grinding while sitting.
explanation_2: The snowboarder cannot possibly be grinding on a rail while sitting in the lodge.
explanation_3: If he is grinding on a rail, he cannot simultaneously be sitting in the lodge.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4.(on(e1,x2) & in(x2,x3) & n_area(x3) & a_mountainous(s2) & Theme(s2,x3) & a_,(s1) & Theme(s1,x3) & of(x3,x4) & n_snowy(x4) & n_rail(x2) & Actor(e1,x1) & v_grind(e1) & n_snowboarder(x1))
hypothesis_logic: exists e1 x1 x2.(n_lodge(x2) & n_snowboarder(x1) & in(e1,x2) & Actor(e1,x1) & v_sit(e1))