premise: a skier is throwing up snow as he skis off piste.
hypothesis: A professional skier skis down a mountain.
explanation_1: A skier is not implied to be a professional. A skier throwing up snow as he skis does not imply that he is skiing down a mountain.
explanation_2: A skier who is not professional can also ski down
explanation_3: A skier doesn't have to be a professional.
premise_logic: exists e1 p1 s1 x1 x2.(exists e2 s2 x3.(a_off(s2) & Manner(e2,s2) & Theme(e2,x3) & Actor(e2,x1) & v_ski(e2) & n_piste(x3)) & n_male(x1) & as(e1,p1) & a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_snow(x2) & n_skier(x1))
hypothesis_logic: exists s1 x1 x2 x3.(a_topic(x1) & down(x1,x3) & n_mountain(x3) & n_ski(x1) & of(x1,x2) & n_skier(x2) & a_professional(s1) & Theme(s1,x1))
premise_sim: exists e1 p1 s1 x1 x2.(v_throw(e1) & n_snow(x2) & n_skier(x1) & n_male(x1) & exists e2 s2 x3.(v_ski(e2) & n_piste(x3) & a_off(s2) & Theme(e2,x3) & Manner(e2,s2) & Actor(e2,x1)) & as(e1,p1) & a_up(s1) & Theme(e1,x2) & Manner(e1,s1) & Actor(e1,x1))
hypothesis_sim: exists s1 x1 x2 x3.(of(x1,x2) & n_skier(x2) & n_ski(x1) & n_mountain(x3) & down(x1,x3) & a_topic(x1) & a_professional(s1) & Theme(s1,x1))