premise: People are riding on a train.
hypothesis: The people are on a boat.
explanation_1: People cannot simultaneously be riding on a train and a boat.
premise_logic: exists e1 x1 x2.(on(e1,x2) & n_train(x2) & Actor(e1,x1) & v_ride(e1) & n_people(x1))
hypothesis_logic: exists p1 x1.(n_people(x1) & exists x2.(on(x1,x2) & n_boat(x2)))
premise_sim: exists e1 x1 x2.(v_ride(e1) & on(e1,x2) & n_train(x2) & n_people(x1) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_people(x1) & exists x2.(on(x1,x2) & n_boat(x2)))