l1 = aba(x), r1 = x, l2 = aba(x'), r2 = x', p = [0, 0]
l1[p] = a(x), mgu(l1[p], l2) = {x ba(x')} = σ
das aus dieser Überlappung konstruierte CP ist
(r1σ,(l1σ)[p : = r2σ]) = (xσ,(aba(x)σ)[p : = x'σ]) = (ba(x'), ababa(y)[p : = x']) = (ba(x'), ab(x'))