premise: Man with blue and yellow shirt rides bike.
hypothesis: a man rides a bike for the first time
explanation_1: Just because a man rides a bike does not mean we can infer that it is his first time to ride a bike.
explanation_2: A man can ride a bike without it being the first time.
explanation_3: 1st time riding
premise_logic: exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & with(x1,x2) & n_bike(x2) & of(x2,x4) & n_ride(x4) & of(x2,x3) & n_shirt(x3) & a_yellow(s2) & Theme(s2,x2) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(n_time(x3) & a_first(s1) & Theme(s1,x3) & for(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_man(x1))