premise: A young man is caught in midair while doing a skateboard trick in an urban environment.
hypothesis: The man is standing on the sidewalk.
explanation_1: One cannot be standing and in midair at the same time.
explanation_2: One can't perform a skateboard trick while standing on the sidewalk.
explanation_3: A man cannot be doing a skateboard trick and be standing on the sidewalk at the same time.
premise_logic: exists e1 e2 s1 s2 x1 x2 x3 x4 x5.(while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_do(e2) & in(x3,x5) & n_environment(x5) & a_urban(s2) & Theme(s2,x5) & n_trick(x3) & of(x3,x4) & n_skateboard(x4) & in(e1,x2) & n_midair(x2) & Theme(e1,x1) & v_catch(e1) & n_man(x1) & a_young(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2.(n_sidewalk(x2) & n_man(x1) & on(e1,x2) & Actor(e1,x1) & v_stand(e1))