A bearded man sits with a cocktail.
A man without a beard has a cocktail.
One cannot be bearded and be without beards simultaneously.
exists e1 s1 x1 x2.(with(e1,x2) & n_cocktail(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & a_bearded(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_cocktail(x2) & -exists x3.(with(x1,x3) & n_beard(x3)) & n_man(x1))