premise: A man in a gray coat is walking on a fallen tree trunk in a forest.
hypothesis: A young man wearing a gray winter jacket walks on a fallen oak tree.
explanation_1: The man must be young, his coat must be for winter, and a tree would be in a forest.
explanation_2: Young man is a type of man, and gray coat is a type of winter jacket.
explanation_3: A man may be a  young man, walking and walks on are same
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5.(in(e1,x5) & n_forest(x5) & on(e1,x3) & n_trunk(x3) & of(x3,x4) & n_tree(x4) & a_fallen(s2) & Theme(s2,x3) & Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_coat(x2) & a_gray(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6.(on(e2,x5) & n_tree(x5) & of(x5,x6) & n_oak(x6) & a_fallen(s3) & Theme(s3,x5) & Actor(e2,x1) & v_walk(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_jacket(x3) & of(x3,x4) & n_winter(x4) & a_gray(s2) & Theme(s2,x3) & (x1 = x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))