premise: A worker dressed in hazard orange, face-down in an open street work.
hypothesis: The man in black is climbing the stairs.
explanation_1: Someone wearing orange in the street can't be in black on the stairs.
explanation_2: The man is either in orange or black.
explanation_3: The man is either in hazard orange or black.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & for(e1,s2) & Theme(s2,x2) & a_face-down(s2) & in(e1,x5) & n_work(x5) & of(x5,x6) & n_street(x6) & a_open(s1) & Theme(s1,x5) & in(e1,x3) & n_orange(x3) & of(x3,x4) & n_hazard(x4) & Theme(e1,x2) & v_dress(e1) & (x1 = x2) & n_worker(x1))
hypothesis_logic: exists e1 x1 x2 x3.(n_stair(x3) & n_man(x1) & Theme(e1,x3) & Actor(e1,x1) & v_climb(e1) & in(x1,x2) & n_black(x2))