A man with brown hair is shaving.
A man with brown hair is shaving his beard.
shaving. doesn't always mean  his beard.
exists e1 s1 x1 x2.(Actor(e1,x1) & v_shave(e1) & with(x1,x2) & n_hair(x2) & a_brown(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_shave(e1) & n_beard(x3) & of(x3,x1) & n_male(x1) & with(x1,x2) & n_hair(x2) & a_brown(s1) & Theme(s1,x2) & n_man(x1))