a-a a-c aaa aac aae aas aau aav ac- aca acc ace acs acu acv aea aec aee aes aeu aev as- asa asc ase ass asu asv au- aua auc aue aus auv av- ava avc ave avs avu c-- caa cac cae cas cau cav cca ccc cce ccs ccu ccv ce- cea cec cee ces ceu cev csa csc cse css csu csv cua cuc cue cus cuu cuv cva cvc cve cvs cvu cvv eaa eac eae eas eau eav ec- eca ecc ece ecs ecu ecv eea eec eee ees eev es- esa esc ese ess esu esv eu- eua euc eue eus euv eva evc eve evs evv saa sac sae sas sau sav sca scc sce scs scu scv se- sea sec see ses seu sev ss- ssa ssc sse sss ssu ssv sua suc sue sus suu suv sva svc sve svs svu svv ua- uaa uac uae uas uau uav uca ucc uce ucs ucu ucv uea uec uee ues usa usc use uss usu usv uua uuc uue uus uuu uva uvc uve uvs uvu uvv v-a v-e vaa vac vae vas vau vav vca vcc vce vcs vcu vea vec vee ves veu vsa vsc vse vss vsu vsv vue vus vuv vva vvc vvs vvv