premise: A man on a skateboard on steps in front glass doors of a brick building.
hypothesis: The man with the skateboard is waiting for a plane
explanation_1: The man is on the steps but it is not disclosed what he is doing there so we can't know if he is waiting on a plane.
explanation_2: Waiting is subjective since it is a photograph, he could be in action.  Nothing is mentioned that would indicate he is at an airport or a plane is present.
explanation_3: Just because in front glass doors does not necessarily mean waiting for a plane.
premise_logic: exists s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & on(x1,x2) & on(x2,x3) & in(x3,x4) & of(x4,x6) & n_building(x6) & of(x6,x7) & n_brick(x7) & n_door(x4) & of(x4,x5) & n_glass(x5) & a_front(s1) & Theme(s1,x4) & n_step(x3) & n_skateboard(x2) & n_man(x1))
hypothesis_logic: exists e1 x1 x2 x3.(n_skateboard(x2) & n_man(x1) & for(e1,x3) & n_plane(x3) & Actor(e1,x1) & v_wait(e1) & with(x1,x2))
premise_sim: exists s1 x1 x2 x3 x4 x5 x6 x7.(on(x2,x3) & on(x1,x2) & of(x6,x7) & of(x4,x6) & of(x4,x5) & n_step(x3) & n_skateboard(x2) & n_man(x1) & n_glass(x5) & n_door(x4) & n_building(x6) & n_brick(x7) & in(x3,x4) & a_topic(x1) & a_front(s1) & Theme(s1,x4))
hypothesis_sim: exists e1 x1 x2 x3.(with(x1,x2) & v_wait(e1) & n_skateboard(x2) & n_plane(x3) & n_man(x1) & for(e1,x3) & Actor(e1,x1))