premise: Group of men post on the stairway of an old house.
hypothesis: Men are at an old house.
explanation_1: group of men implies men. stairway is usually inside a building or a house.
explanation_2: A group on men implies that they are men, stairway of an old house is part of an old house.
explanation_3: "group of men post on the stairway of an old house" is a rephrase of "men are at an old house"
premise_logic: exists s1 s2 x1 x2 x3 x4.(n_stairway(x3) & ne_org_group(s1) & a_topic(s1) & of(s1,x1) & on(x1,x3) & of(x3,x4) & n_house(x4) & a_old(s2) & Theme(s2,x4) & n_post(x1) & of(x1,x2) & n_man(x2))
hypothesis_logic: exists p1 x1.(exists s1 x2.(at(x1,x2) & n_house(x2) & a_old(s1) & Theme(s1,x2)) & n_man(x1))