premise: An elderly couple in heavy coats are looking at black and white photos displayed on a wall.
hypothesis: Octogenarians admiring the old photographs that decorated th wall.
explanation_1: An elderly couple in their eighties would be octogenarians and old photos are frequently printed on black and white paper, so the second sentence is more descriptive about the elderly couples age as well as the age of the photographs.
explanation_2: An elderly couple can be Octogenarians, and old photographs are usually black and white photos.
explanation_3: Black and white photos are old photographs.
premise_logic: exists e2 e1 s1 s2 s3 s4 x1 x2 x3 x4 x5.(at(e1,x3) & on(e2,x5) & n_wall(x5) & Theme(e2,x4) & v_display(e2) & (x3 = x4) & n_photo(x3) & a_white(s4) & Theme(s4,x3) & a_black(s3) & Theme(s3,x3) & Actor(e1,x1) & v_look(e1) & in(x1,x2) & n_coat(x2) & a_heavy(s2) & Theme(s2,x2) & n_couple(x1) & a_elderly(s1) & Theme(s1,x1))
hypothesis_logic: exists e2 e1 s1 s2 s3 x1 x2 x3 x4.(n_photograph(x2) & a_old(s2) & Theme(s2,x2) & ne_nam_octogenarians(s1) & a_topic(s1) & Theme(e2,x2) & Actor(e2,x1) & v_admire(e2) & Theme(e1,x4) & Actor(e1,x3) & v_decorate(e1) & n_wall(x4) & a_th(s3) & Theme(s3,x4) & (x2 = x3) & (s1 = x1))
premise_sim: exists e2 e1 s1 s2 s3 s4 x1 x2 x3 x4 x5.(v_look(e1) & v_display(e2) & on(e2,x5) & n_wall(x5) & n_photo(x3) & n_couple(x1) & n_coat(x2) & in(x1,x2) & at(e1,x3) & a_white(s4) & a_heavy(s2) & a_elderly(s1) & a_black(s3) & Theme(s4,x3) & Theme(s3,x3) & Theme(s2,x2) & Theme(s1,x1) & Theme(e2,x4) & Actor(e1,x1) & (x3 = x4))
hypothesis_sim: exists e2 e1 s1 s2 s3 x1 x2 x3 x4.(v_decorate(e1) & v_admire(e2) & ne_nam_octogenarians(s1) & n_wall(x4) & n_photograph(x2) & a_topic(s1) & a_th(s3) & a_old(s2) & Theme(s3,x4) & Theme(s2,x2) & Theme(e2,x2) & Theme(e1,x4) & Actor(e2,x1) & Actor(e1,x3) & (x2 = x3) & (s1 = x1))