Some of the hair in his beard are turning grey.
The person with the beard is a man.
Not all people with beards are necessarily a man.
exists e1 x1 x2 x3 x4.(n_beard(x3) & of(x3,x2) & n_male(x2) & n_hair(x2) & Theme(e1,x4) & Actor(e1,x1) & v_turn(e1) & n_grey(x4) & of(x1,x2) & in(x2,x3) & n_thing(x1))
exists p1 x1 x2.(n_beard(x2) & n_person(x1) & exists x3.((x1 = x3) & n_man(x3)) & with(x1,x2))