premise: A person is riding his bicycle and is flying through the air on it.
hypothesis: The boy is playing soccer.
explanation_1: A person can either ride a bicycle or play soccer.
explanation_2: A person does not have to be a boy.  Riding a bicycle is not playing soccer.
explanation_3: A person riding a bicycle can't be playing soccer at the same time.
premise_logic: exists e1 e2 x1 x2 x3 x4.(n_air(x4) & on(e2,x1) & n_thing(x1) & through(e2,x4) & Actor(e2,x3) & v_fly(e2) & n_person(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bicycle(x2) & of(x2,x1) & n_male(x1) & n_person(x1))
hypothesis_logic: exists e1 x1 x2.(n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_soccer(x2))