premise: An African American wearing a red backpack looks the photographer as he walks past a concrete wall covered in graffiti.
hypothesis: a woman wears a backpack
explanation_1: Woman is not strictly implied by African American; it could also be a man.
explanation_2: He can't be a woman.
explanation_3: The person is either he or a woman.
premise_logic: exists e1 e2 p1 s1 s2 x1 x2 x3 x4.(n_male(x4) & n_photographer(x4) & exists e3 e4 s3 x5 x6 x7.(past(e3,x5) & in(e4,x7) & n_graffitus(x7) & Theme(e4,x6) & v_cover(e4) & (x5 = x6) & n_wall(x5) & a_concrete(s3) & Theme(s3,x5) & Actor(e3,x4) & v_walk(e3)) & as(e2,p1) & Theme(e2,x4) & Actor(e2,x1) & v_look(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_backpack(x3) & a_red(s2) & Theme(s2,x3) & (x1 = x2) & n_american(x1) & a_african(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_backpack(x2) & n_woman(x1))