premise: Young man performing a skateboard trick on a sidewalk in a city.
hypothesis: There is a guy performing a skill on a skateboard on the sidewalk in a metropolitan area.
explanation_1: Performing a skateboard trick requires skill, and a city may also be considered a metropolitan area.
explanation_2: You have to be on a skateboard to perform a skateboard trick
explanation_3: a young man is a guy. a trick on a skateboard is a skill. a city is a metropolitan area.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & in(e1,x6) & n_city(x6) & on(e1,x5) & n_sidewalk(x5) & Theme(e1,x3) & Actor(e1,x2) & v_perform(e1) & n_trick(x3) & of(x3,x4) & n_skateboard(x4) & (x1 = x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 x1 x6.(n_sidewalk(x6) & exists e1 s1 x2 x3 x4 x5 x7.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_perform(e1) & on(x4,x5) & on(x5,x6) & in(x6,x7) & n_area(x7) & a_metropolitan(s1) & Theme(s1,x7) & n_skateboard(x5) & n_skill(x4) & (x2 = x3) & n_guy(x2)))