-er a-a a-c aaa aac aae aah aak aao aar aas aau ac- aca acc ace ach ack aco acr acs acu aea aec aee aeh aek aeo aer aes aeu aha ahc ahe ahh ahk aho ahr ahs ahu aka akc ake akh akk ako akr aks aku aoa aoc aoe aoh aok aoo aor aos aou ar- ara arc are arh ark aro arr ars aru as- asa asc ase ash ask aso asr ass asu au- aua auc aue auh auk auo aur aus c-- caa cac cae cah cak cao car cas cau cca ccc cce cch cck cco ccr ccs ccu ce- cea cec cee ceh cek ceo cer ces ceu ch- cha chc che chh chk cho chr chs chu cka ckc ckh cko cks co- coa coc coe coh cok coo cor cos cou cra crc cre crh crk cro crr crs cru csa csc cse csh csk cso csr css csu cua cuc cue cuh cuk cuo cur cus cuu eaa eac eae eah eak eao ear eas eau ec- eca ecc ece ech eck eco ecr ecs ecu eea eec eee eek eeo eer ees eha ehc ehe ehh eho ehr ehs ehu eka ekc eke ekh eko ekr eks eku eo- eoa eoc eoe eoh eok eoo eor eos eou era erc ere erh erk ero err ers eru es- esa esc ese esh esk eso esr ess esu eu- eua euc eue eur eus haa hac hae hah hak hao har has hau hca hcc hce hch hck hco hcr hcs he- hea hec hee heh hek heo her hes heu hha hhc hhe hhh hhk hho hhr hhs hhu hka hkh hkk hko hkr hks hku hoa hoc hoe hoh hok hoo hor hos hou hr- hra hrc hre hrh hrk hro hrr hrs hru hsa hsc hse hsh hsk hsr hss hsu hua huc hue huh huk huo hur hus huu ka- kaa kac kae kah kak kao kar kas kau kca kcc kce kch kck kcr kcs kcu ke- kea kec kee keh kek keo ker kes kha khe khh khk kho khr khs khu kkc kke kkh kkk kkr kks kku koa koc koe koh kok koo kor kos kou kra krc krk kro krr krs kru ksa ksc kse ksh ksk kso ksr kss ksu kuc kue kuh kuk kur kus kuu oaa oac oae oah oak oao oar oas oau oc- oca occ och ock oco ocr ocs ocu oea oec oee oeh oeo oer oes oha ohc ohe ohh oho ohr ohs ohu oka okc oke okk oko okr oks oku oo- ooa ooc ooh ook ooo oor oos or- ora orc ore orh ork oro orr ors oru os- osa osc ose osh osk oso osr oss osu ou- oua ouc oue ouh ouk ouo our ous ra- raa rac rae rah rak rao rar ras rau rca rcc rce rch rco rcr rcs rcu re- rea rec ree reh rek reo rer res reu rh- rha rhc rhe rhh rho rhr rhs rhu rkc rke rkk rko rks rku roa roc roe roh rok roo ror ros rou rra rrc rrh rrk rrr rrs rru rsa rsc rse rsh rsk rso rsr rss rsu rua ruc rue ruh ruk ruo rur rus ruu saa sac sae sah sak sao sar sas sau sca scc sce sch sck sco scr scs scu se- sea sec see seh sek seo ser ses seu sh- sha shc she shh shk sho shr shs shu sk- ska skc ske skh skk sko skr sks sku soa soc soe soh sok soo sor sos sou sr- sra src sre srh srk sro srr srs ss- ssa ssc sse ssh ssk sso ssr sss ssu sua suc sue suh suk suo sur sus suu ua- uaa uac uae uah uak uao uar uas uau uca ucc uce uch uck uco ucr ucs ucu uea uec uee ueh uer ues uha uhc uhe uhh uho uhr uhs uhu uka ukc uke ukk ukr uku uoa uoc uoe uok uoo uor uos ur- ura urc ure urk uro urr urs uru usa usc use ush usk uso usr uss usu uua uuc uue uur uus uuu