premise: This woman is skiing down a snowy hill.
hypothesis: This woman is skiing down a grassy hill.
explanation_1: The hill cannot be a snowy hill if it is a grassy hill.
explanation_2: If she is skiing down a snowy hill, then she cannot be skiing down a grassy hill at the same time.
explanation_3: Skiing down a snowy hill can not also be skiing down a grassy hill.
premise_logic: exists e1 s1 s2 x1 x2.(n_woman(x1) & a_down(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_ski(e1) & n_hill(x2) & a_snowy(s1) & Theme(s1,x2))
hypothesis_logic: exists e1 s1 s2 x1 x2.(n_woman(x1) & a_down(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_ski(e1) & n_hill(x2) & a_grassy(s1) & Theme(s1,x2))
premise_sim: exists e1 s1 s2 x1 x2.(v_ski(e1) & n_woman(x1) & n_hill(x2) & a_snowy(s1) & a_down(s2) & Theme(s1,x2) & Theme(e1,x2) & Manner(e1,s2) & Actor(e1,x1))
hypothesis_sim: exists e1 s1 s2 x1 x2.(v_ski(e1) & n_woman(x1) & n_hill(x2) & a_grassy(s1) & a_down(s2) & Theme(s1,x2) & Theme(e1,x2) & Manner(e1,s2) & Actor(e1,x1))