premise: A large African American man sitting on a camping chair.
hypothesis: the large black man is running a race
explanation_1: You cannot be running a race by sitting on a chair.
explanation_2: One can't be sitting and running.
explanation_3: It is not possible to be sitting and running at the same time.
premise_logic: exists e1 s1 s2 s3 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & n_chair(x3) & of(x3,x4) & n_camping(x4) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1) & a_american(s3) & Theme(s3,x1) & a_african(s2) & Theme(s2,x1) & a_large(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 s1 s2 x1 x2.(n_man(x1) & a_black(s2) & Theme(s2,x1) & a_large(s1) & Theme(s1,x1) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & n_race(x2))