premise: Man sliding down stair handrails on a bike.
hypothesis: A woman riding a bike in the park.
explanation_1: Man and woman are two different things.
explanation_2: The first sentence is about a man and the second sentence is about a woman.
explanation_3: The person must be either a man or a woman.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x5) & n_bike(x5) & a_down(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_slide(e1) & n_handrail(x3) & of(x3,x4) & n_stair(x4) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(n_park(x4) & a_topic(x1) & in(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bike(x3) & (x1 = x2) & n_woman(x1))