premise: A young couple riding on a bus with the boy's arm around the girl.
hypothesis: The couple are in their parent's car.
explanation_1: The bus is probably crowded, while their parent's car might be a little more private.
explanation_2: If the young couple is on a bus they cannot be riding in their parents car.
explanation_3: The couple can't be both on a bus and in a car.
premise_logic: exists s1 x1 x2 x3 x4 x5 x6.(n_girl(x6) & n_arm(x5) & of(x5,x4) & n_boy(x4) & a_topic(x1) & on(x1,x3) & with(x3,x5) & around(x5,x6) & n_bus(x3) & n_riding(x1) & of(x1,x2) & n_couple(x2) & a_young(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 x1 x2 x3.(n_car(x3) & of(x3,x2) & n_parent(x2) & of(x2,x1) & n_thing(x1) & n_couple(x1) & in(x1,x3))