premise: Man wearing a mask of an old man.
hypothesis: A man wears a mask.
explanation_1: a man wearing a mask still wears a mask
explanation_2: A man that wears a mask is wearing a mask.
explanation_3: The mask is of an old man.
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 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_mask(x2) & n_man(x1))