premise: Someone riding sideways on a motorcycle.
hypothesis: There is a person on a machine.
explanation_1: The machine could refer to a motorcycle since a motorcycle is a type of machine.
premise_logic: exists e1 x1 x2.(on(e1,x2) & n_motorcycle(x2) & Actor(e1,x1) & v_sideway(e1) & n_riding(x1))
hypothesis_logic: exists p1 x1 x2 x3.((x1 = x2) & on(x2,x3) & n_machine(x3) & n_person(x2))
premise_sim: exists e1 x1 x2.(v_sideway(e1) & on(e1,x2) & n_riding(x1) & n_motorcycle(x2) & Actor(e1,x1))
hypothesis_sim: exists x1 x2 x3.(on(x2,x3) & n_person(x2) & n_machine(x3) & (x1 = x2))