 He further suggested that the industry could have been used by nomadic shepherds.The relationship and dividing line between the related Heavy Neolithic zone of the south Beqaa Valley could also not be clearly defined but was suggested to be in the area around Douris and Qalaat Tannour.Not enough exploration had been carried out to conclude whether the bands of Neolithic surface sites continues south into the areas around Zahle and Rayak.