-er a-a a-c aaa aac aae aah aak aar aas aau ac- aca acc ace ach ack acr acs acu aea aec aee aeh aek aer aes aeu aha ahc ahe ahh ahk ahr ahs ahu aka akc ake akh akk akr aks aku ar- ara arc are arh ark arr ars aru as- asa asc ase ash ask asr ass asu au- aua auc aue auh auk aur aus c-- caa cac cae cah cak car cas cau cca ccc cce cch cck ccr ccs ccu ce- cea cec cee ceh cek cer ces ceu ch- cha chc che chh chk chr chs chu cka ckc ckh cks cra crc cre crh crk crr crs cru csa csc cse csh csk csr css csu cua cuc cue cuh cuk cur cus cuu eaa eac eae eah eak ear eas eau ec- eca ecc ece ech eck ecr ecs ecu eea eec eee eek eer ees eha ehc ehe ehh ehr ehs ehu eka ekc eke ekh ekr eks eku era erc ere erh erk err ers eru es- esa esc ese esh esk esr ess esu eu- eua euc eue eur eus haa hac hae hah hak har has hau hca hcc hce hch hck hcr hcs he- hea hec hee heh hek her hes heu hha hhc hhe hhh hhk hhr hhs hhu hka hkh hkk hkr hks hku hr- hra hrc hre hrh hrk hrr hrs hru hsa hsc hse hsh hsk hsr hss hsu hua huc hue huh huk hur hus huu ka- kaa kac kae kah kak kar kas kau kca kcc kce kch kck kcr kcs kcu ke- kea kec kee keh kek ker kes kha khe khh khk khr khs khu kkc kke kkh kkk kkr kks kku kra krc krk krr krs kru ksa ksc kse ksh ksk ksr kss ksu kuc kue kuh kuk kur kus kuu ra- raa rac rae rah rak rar ras rau rca rcc rce rch rcr rcs rcu re- rea rec ree reh rek rer res reu rh- rha rhc rhe rhh rhr rhs rhu rkc rke rkk rks rku rra rrc rrh rrk rrr rrs rru rsa rsc rse rsh rsk rsr rss rsu rua ruc rue ruh ruk rur rus ruu saa sac sae sah sak sar sas sau sca scc sce sch sck scr scs scu se- sea sec see seh sek ser ses seu sh- sha shc she shh shk shr shs shu sk- ska skc ske skh skk skr sks sku sr- sra src sre srh srk srr srs ss- ssa ssc sse ssh ssk ssr sss ssu sua suc sue suh suk sur sus suu ua- uaa uac uae uah uak uar uas uau uca ucc uce uch uck ucr ucs ucu uea uec uee ueh uer ues uha uhc uhe uhh uhr uhs uhu uka ukc uke ukk ukr uku ur- ura urc ure urk urr urs uru usa usc use ush usk usr uss usu uua uuc uue uur uus uuu