premise: Man wearing a mask of an old man.
hypothesis: A man wears a green mask.
explanation_1: The mask in question may or not be green.
explanation_2: That the man is wearing a mask of an old man does not imply he is wearing a green mask because humans, even when old, are not usually green.
explanation_3: Just because man is wearing a mask, it does not have to be green
premise_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & of(x3,x4) & n_man(x4) & a_old(s1) & Theme(s1,x4) & n_mask(x3) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_mask(x2) & a_green(s1) & Theme(s1,x2) & n_man(x1))
premise_sim: exists e1 s1 x1 x2 x3 x4.(v_wear(e1) & of(x3,x4) & n_mask(x3) & n_man(x4) & n_man(x1) & a_topic(x1) & a_old(s1) & Theme(s1,x4) & Theme(e1,x3) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists e1 s1 x1 x2.(v_wear(e1) & n_mask(x2) & n_man(x1) & a_green(s1) & Theme(s1,x2) & Theme(e1,x2) & Actor(e1,x1))