The recounting of such detailed and extensive ancestry raises the question of how accurate the genealogies were and the extent to which specific links or ancestral founders might have been forgotten, misrepresented, or even invented in the course of time. Examples from other genealogical systems clearly provide instances in which deviations from actual descent are constructed (see Turkish lineage organization). In ancient Israel the problem of authenticity was partially reduced by the practice of maintaining written records. However, even documented genealogies are subject to distortion, especially when they authenticate claims to status, property, and power. Thus there are numerous inconsistencies in the biblical accounts. For example, when Moses allots the major Trans-Jordan region of Gilead to the tribe of Manasseh after the conquest of Amorite territory, a major subdivision of this grant is awarded to Jair, "the son of Manesseh" ( Numbers 32:41). In another passage, however, Jair is placed in an different descent line within the tribe of Judah as the son of Segub, who has inherited territorial rights from his Manassenite mother ( I Chronicles 2:21-23). This patrimony passes on to Jair, but is then reclaimed by "descendants of Machir [Manasseh's son]". The reasons for these variant genealogies cannot be fully reconstructed, but their presence might very well have voiced counterclaims to territory by the two largest and most powerful tribes in the region.