-aaa- aaaas aaasa aaass aabaa aabba aabra aasra abaab ababa ababs abara abasa abass abbar abbas abbrs abrar abras absar ar-ab arab- araba arabs arara arars arass araxa arbab arbar arbas arras asaba asara asasa asrar assab assas asxas baars babar babas babax babbs babra bar-x baraa barab barar baras barba barbs barra barrs barsa barss basab basar basra bassa braas brasa brass brrar brrrr bsaba ra-ra raaba raasa rabab rabas rabba rasar rasas rasra rassa raxar sa-ra saaba saabs saara saasa sabar sabas sabra sabsa saraa sarab saras sarra sarsa sassa srb-a sssrb sssss x-bar xbxrx