premise: A man does a skating trick off of graffiti-filled stairs.
hypothesis: A man yawns and stretches, tired from a day of work.
explanation_1: The man cannot simultaneously be doing a skating trick and yawn and stretch
explanation_2: if a man is tired cannot do skating tricks
explanation_3: One usually would not be able to do a skating trick and yawn and stretch simultaneously.
premise_logic: exists e1 e2 s1 x1 x2 x3.(of(e2,x3) & n_stair(x3) & a_graffiti-filled(s1) & Theme(s1,x3) & r_off(e2) & Theme(e2,x2) & Actor(e2,x1) & v_do(e2) & n_trick(x2) & Actor(e1,x2) & v_skate(e1) & n_man(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4 x5 x6.(from(e1,x5) & of(x5,x6) & n_work(x6) & n_day(x5) & Theme(e1,x1) & v_tire(e1) & n_stretch(x4) & n_yawn(x3) & subset_of(x4,x1) & subset_of(x3,x1) & of(x1,x2) & n_man(x2))