premise: A Skier ski-jumping while two other skiers watch his act.
hypothesis: A skier teaching others a trick
explanation_1: Just because a skier is being watched by two other skiers doesn't mean he is teaching them. People could just observe someone skiing.
explanation_2: He may not be teaching a trick, may be only a show.
explanation_3: A skier can ski without teaching.
premise_logic: (x)
hypothesis_logic: all x1.((n_person(x1) & n_trick(x1)) -> exists s1 x2 x3.(a_topic(x2) & for(x2,x1) & -(x2 = x1) & n_person(x2) & of(x2,x3) & n_teaching(x3) & r_more(s1) & a_skier(s1) & Theme(s1,x2)))