premise: The man in the black shirt is skateboarding on the front steps of the building.
hypothesis: A guy is doing skateboard tricks outside a building to promote a movie.
explanation_1: Skateboarding can be for fun or exercise, it does not have to be to promote a move.
explanation_2: skateboarding on building footsteps doesn't  mean promoting movie
explanation_3: It is not a must for a guy to be skateboarding outside a building to promote a movie.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4.(n_building(x4) & n_step(x3) & a_front(s2) & Theme(s2,x3) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1) & on(e1,x3) & of(x3,x4) & Actor(e1,x1) & v_skateboard(e1) & in(x1,x2))
hypothesis_logic: exists e1 p1 x1 x2 x3 x4 x5.(Topic(e1,p1) & exists e2 x6.(Theme(e2,x6) & Actor(e2,x1) & v_promote(e2) & n_movie(x6)) & outside(e1,x5) & n_building(x5) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & n_trick(x3) & of(x3,x4) & n_skateboard(x4) & n_guy(x2) & n_guy(x1))