premise: An elderly man is posing in front of some rock formations.
hypothesis: An older man posing by a rock.
explanation_1: Older man posing in front of rock  is mentioned in both sentences
explanation_2: Elderly man is an older man, and posing by a rock is a paraphrase of posing in front of some rock formations.
explanation_3: elderly man is inferred as older man and posing in front of some rock formations is inferred as  posing by a rock.
premise_logic: exists e1 s1 x1 x2 x3 x4.(in(e1,x2) & of(x2,x3) & n_formation(x3) & of(x3,x4) & n_rock(x4) & n_front(x2) & Actor(e1,x1) & v_pose(e1) & n_man(x1) & a_elderly(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(a_topic(x1) & by(e1,x3) & n_rock(x3) & Actor(e1,x2) & v_pose(e1) & (x1 = x2) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))