There's a single complication from the definition on the split position. You might have observed that we referred to “a”, rather then “the” most current popular ancestor. It's because there is usually more than one in the situation of “criss-cross merges”, for instance this: Criss-Cross Merge In this article, the http://curriculumvitae00628.blogkoo.com/rumored-buzz-on-curriculum-vitae-30059192