premise: A skateboarder does a trick in midair.
hypothesis: A person skate boarding.
explanation_1: A skateboarder does a trick means a person skate boarding.
explanation_2: Skateboarder is a person.
explanation_3: A person skate boarding is a skateboarder.
premise_logic: exists e1 x1 x2 x3.(in(e1,x3) & n_midair(x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_trick(x2) & n_skateboarder(x1))
hypothesis_logic: exists s1 x1 x2 x3.(a_topic(x1) & Time(s1,x3) & n_boarding(x3) & Theme(s1,x2) & a_skate(s1) & (x1 = x2) & n_person(x1))