Deg wafir-agi bu reba tseddarin, ttilint-d reba tmeùrutin, tlata d tigensayin, yiwet d tanirit (AAAB/AAAB/AAAB). Tikwal, amedyazt yettbeddil nvam n tmeùrutin tigensayin s nvam yecban (AABC/AABC/AABC)(1).