premise: somebody in the air on a board
hypothesis: The person is on a skateboard.
explanation_1: A person can be in the air on a board without it being a skateboard.
premise_logic: exists x1 x2 x3.(n_air(x2) & a_topic(x1) & in(x1,x2) & on(x2,x3) & n_board(x3) & n_person(x1))
hypothesis_logic: exists p1 x1.(n_person(x1) & exists x2.(on(x1,x2) & n_skateboard(x2)))
premise_sim: exists x1 x2 x3.(on(x2,x3) & n_person(x1) & n_board(x3) & n_air(x2) & in(x1,x2) & a_topic(x1))
hypothesis_sim: exists x1.(n_person(x1) & exists x2.(on(x1,x2) & n_skateboard(x2)))