premise: a skateboarder grinds the rail.
hypothesis: A skateboarder in action
explanation_1: When skateboarder grind th rail is in action performing tricks with the skateboard.
premise_logic: exists e1 x1 x2.(n_rail(x2) & Theme(e1,x2) & Actor(e1,x1) & v_grind(e1) & n_skateboarder(x1))
hypothesis_logic: exists x1 x2.(a_topic(x1) & in(x1,x2) & n_action(x2) & n_skateboarder(x1))
premise_sim: exists e1 x1 x2.(v_grind(e1) & n_skateboarder(x1) & n_rail(x2) & Theme(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists x1 x2.(n_skateboarder(x1) & n_action(x2) & in(x1,x2) & a_topic(x1))