premise: A group of people are taking a fun train ride.
hypothesis: People are on a bus.
explanation_1: A train is not a bus.
explanation_2: One cannot be on a train and a bus at the same time.
explanation_3: If you are on a train, you are not on a bus.
premise_logic: exists e1 x1 x2 x3 x4 x5.(Theme(e1,x3) & Actor(e1,x1) & v_take(e1) & n_ride(x3) & of(x3,x5) & n_train(x5) & of(x3,x4) & n_fun(x4) & of(x1,x2) & n_people(x2) & n_group(x1))
hypothesis_logic: exists p1 x1.(exists x2.(on(x1,x2) & n_bus(x2)) & n_people(x1))