An elderly man with white hair and eyeglasses is smiling at something
A old man is smiling at an object.
Elderly means the same as old.  Something would imply an object.
exists e1 s1 s2 x1 x2 x3 x4 x5.(at(e1,x5) & n_thing(x5) & Actor(e1,x1) & v_smile(e1) & with(x1,x2) & subset_of(x4,x2) & n_eyeglass(x4) & subset_of(x3,x2) & n_hair(x3) & a_white(s2) & Theme(s2,x3) & n_man(x1) & a_elderly(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(at(e1,x2) & n_object(x2) & Actor(e1,x1) & v_smile(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1))