Deg tezrawt n YAHYAOUI Mahdi i yexdem ɣef tenfaliyin tukrifin (2008: 39) yenna-d : tuget n tbadutin i d-yettawin ɣef tenfaliyin-agi, qqaren-t-d dakken d agraw n wawalen, yettuneḥsaben d yiwen uferdis.4