premise: A biker races.
hypothesis: A person is riding a bike
explanation_1: A person is a biker since he is riding a bike.
explanation_2: A person riding a bike means a biker races.
explanation_3: To race a bike, you must be riding the bike.
premise_logic: exists x1 x2.(a_topic(x1) & n_race(x1) & of(x1,x2) & n_biker(x2))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_person(x1))
premise_sim: exists x1 x2.(of(x1,x2) & n_race(x1) & n_biker(x2) & a_topic(x1))
hypothesis_sim: exists e1 x1 x2.(v_ride(e1) & n_person(x1) & n_bike(x2) & Theme(e1,x2) & Actor(e1,x1))