premise: A woman smiling while on a bicycle.
hypothesis: A woman is smiling on her bicycle as cars drive past her.
explanation_1: You can not infer cars go by her.
explanation_2: One may be on a bicycle in a place where there are no cars to drive past her.
explanation_3: Although the woman is riding her bicycle, there may not be cars driving past her.
premise_logic: exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_bicycle(x3) & r_while(e1) & Actor(e1,x2) & v_smile(e1) & (x1 = x2) & n_woman(x1))
hypothesis_logic: exists e1 p1 x1 x2.(exists e2 x3.(past(e2,x1) & Actor(e2,x3) & v_drive(e2) & n_car(x3)) & n_female(x1) & n_female(x1) & as(e1,p1) & on(e1,x2) & n_bicycle(x2) & of(x2,x1) & Actor(e1,x1) & v_smile(e1) & n_woman(x1))