premise: A water glider.
hypothesis: A boat.
explanation_1: glider  is not the same as boat
premise_logic: exists x1 x2.(a_topic(x1) & n_glider(x1) & of(x1,x2) & n_water(x2))
hypothesis_logic: exists x1.(a_topic(x1) & n_boat(x1))
premise_sim: exists x1 x2.(of(x1,x2) & n_water(x2) & n_glider(x1) & a_topic(x1))
hypothesis_sim: exists x1.(n_boat(x1) & a_topic(x1))