premise: The skier is jumping over a snowy mound in front of a pine tree.
hypothesis: The man is skiing.
explanation_1: Just because there is a skier does not mean he is a man. Just because a skier is jumping over a mound of snow does not mean he is skiing.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5.(n_skier(x1) & in(e1,x3) & of(x3,x4) & n_tree(x4) & of(x4,x5) & n_pine(x5) & n_front(x3) & a_over(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_mound(x2) & a_snowy(s1) & Theme(s1,x2))
hypothesis_logic: exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_skiing(x2)))
premise_sim: exists e1 s1 s2 x1 x2 x3 x4 x5.(v_jump(e1) & of(x4,x5) & of(x3,x4) & n_tree(x4) & n_skier(x1) & n_pine(x5) & n_mound(x2) & n_front(x3) & in(e1,x3) & a_snowy(s1) & a_over(s2) & Theme(s1,x2) & Theme(e1,x2) & Manner(e1,s2) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_man(x1) & exists x2.(n_skiing(x2) & (x1 = x2)))