premise: A person in gray snowboarding down a hill.
hypothesis: The snowboarder is a man.
explanation_1: A snowboarder is performing
explanation_2: Not every person is a man.
explanation_3: It cannot be assume that the snowboarder is a man.
premise_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & a_down(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x3) & v_snowboard(e1) & n_hill(x4) & (x1 = x3) & in(x1,x2) & n_gray(x2) & n_person(x1))
hypothesis_logic: exists p1 x1.(n_snowboarder(x1) & exists x2.((x1 = x2) & n_man(x2)))
premise_sim: exists e1 s1 x1 x2 x3 x4.(v_snowboard(e1) & n_person(x1) & n_hill(x4) & n_gray(x2) & in(x1,x2) & a_topic(x1) & a_down(s1) & Theme(e1,x4) & Manner(e1,s1) & Actor(e1,x3) & (x1 = x3))
hypothesis_sim: exists x1.(n_snowboarder(x1) & exists x2.(n_man(x2) & (x1 = x2)))