-er a-a aaa aae aak aao aar aas aaw aea aee aek aeo aer aes aew aka ake akk ako akr aks akw aoa aoe aok aoo aor aos aow ar- ara are ark aro arr ars arw as- asa ase ask aso asr ass asw aw- awa awe awk awo awr aws aww eaa eae eak eao ear eas eaw eea eee eek eeo eer ees eew eka eke eko ekr eks eo- eoa eoe eok eoo eor eos eow era ere erk ero err ers erw es- esa ese esk eso esr ess esw ewa ewe ewk ewo ewr ews eww ka- kaa kae kak kao kar kas kaw ke- kea kee kek keo ker kes kew kke kkk kkr kks koa koe kok koo kor kos kow kra krk kro krr krs krw ksa kse ksk kso ksr kss ksw kw- kwa kwk kwo kws kww oaa oae oak oao oar oas oaw oea oee oeo oer oes oka oke okk oko okr oks okw oo- ooa ook ooo oor oos oow or- ora ore ork oro orr ors os- osa ose osk oso osr oss osw owa owe owk owo ows oww ra- raa rae rak rao rar ras raw re- rea ree rek reo rer res rew rke rkk rko rks roa roe rok roo ror ros row rra rrk rrr rrs rsa rse rsk rso rsr rss rsw rwa rwe rwr rws saa sae sak sao sar sas saw se- sea see sek seo ser ses sew sk- ska ske skk sko skr sks skw soa soe sok soo sor sos sow sr- sra sre srk sro srr srs srw ss- ssa sse ssk sso ssr sss ssw swa swe swk swo swr sws waa wae wak wao war was waw wea wee wek weo wer wes wew wka wke wko wkr wks wkw woa woe wok woo wor wos wow wr- wra wre wrk wro wrr wrs wrw wsa wse wsk wso wsr wss wsw wwa wwe wwo www