premise: A Skier ski-jumping while two other skiers watch his act.
hypothesis: A skier preparing a trick
explanation_1: Tricks are part of an act
explanation_2: Ski-jumping is a type of trick.
explanation_3: Ski-jumping is considered a trick.
premise_logic: (x)
hypothesis_logic: exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_prepare(e1) & n_trick(x3) & (x1 = x2) & n_skier(x1))