premise: A person on a motorcycle.
hypothesis: a person on a motorcycle
explanation_1: A person on a motorcycle, they're on a motorcycle.
explanation_2: A PERSON RIDES A MOTORCYCLE
explanation_3: both sentences reference a person on a motorcycle
premise_logic: exists x1 x2.(a_topic(x1) & on(x1,x2) & n_motorcycle(x2) & n_person(x1))
hypothesis_logic: exists x1 x2.(a_topic(x1) & on(x1,x2) & n_motorcycle(x2) & n_person(x1))