premise: Man sliding down stair handrails on a bike.
hypothesis: A biker glides down handrails.
explanation_1: A man on a bike is a biker.
explanation_2: Biker is man, and sliding is a synonym of glides.
explanation_3: The man sliding down the handrails on a bike is simplified to a biker.
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 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_glide(e1) & n_handrail(x2) & n_biker(x1))