premise: A man riding his bike wearing his helmet in front of an audience.
hypothesis: A man is showing a group of people perfect biking form
explanation_1: He may have bad biking form.
explanation_2: For the fact that the man is wearing his helmet does not mean that he is showing some people perfect biking form.
explanation_3: A man riding his bike for an audience is not assumed to be showing a group of people perfect biking form.
premise_logic: exists e2 e1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & Theme(e2,x5) & Actor(e2,x4) & v_wear(e2) & in(x5,x6) & of(x6,x7) & n_audience(x7) & n_front(x6) & n_helmet(x5) & of(x5,x1) & n_male(x1) & n_male(x1) & (x1 = x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bike(x3) & of(x3,x1) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4 x5 x6.(Theme(e1,x2) & Actor(e1,x1) & v_show(e1) & of(x2,x3) & Theme(s1,x5) & Actor(s1,x4) & a_perfect(s1) & n_form(x5) & of(x5,x6) & n_biking(x6) & (x3 = x4) & n_people(x3) & n_group(x2) & n_man(x1))