premise: A policeman on a motorcycle from the rear.
hypothesis: An officer on a chopper.
explanation_1: A person cannot be on a chopper and a motorcycle simultaneously.
explanation_2: A motorcycle is not always viewed from the rear.
explanation_3: A chopper and a motorcycle are not necessarily the same thing.
premise_logic: exists x1 x2 x3.(n_rear(x3) & a_topic(x1) & on(x1,x2) & from(x2,x3) & n_motorcycle(x2) & n_policeman(x1))
hypothesis_logic: exists x1 x2.(a_topic(x1) & on(x1,x2) & n_chopper(x2) & n_officer(x1))
premise_sim: exists x1 x2 x3.(on(x1,x2) & n_rear(x3) & n_policeman(x1) & n_motorcycle(x2) & from(x2,x3) & a_topic(x1))
hypothesis_sim: exists x1 x2.(on(x1,x2) & n_officer(x1) & n_chopper(x2) & a_topic(x1))