-er a-a aaa aae aak aao aar aas aaw aax aea aee aek aeo aer aes aew aex aka ake akk ako akr aks akw aoa aoe aok aoo aor aos aow aox ar- ara are ark aro arr ars arw arx as- asa ase ask aso asr ass asw asx aw- awa awe awk awo awr aws aww ax- axa axe axk axo axr axs axx eaa eae eak eao ear eas eaw eax eea eee eek eeo eer ees eew eex 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 esx ewa ewe ewk ewo ewr ews eww ex- exa exe exo exr exs exw exx ka- kaa kae kak kao kar kas kaw kax ke- kea kee kek keo ker kes kew kex 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 kxo oaa oae oak oao oar oas oaw oax oea oee oeo oer oes oex oka oke okk oko okr oks okw oo- ooa ook ooo oor oos oow oox or- ora ore ork oro orr ors orx os- osa ose osk oso osr oss osw osx owa owe owk owo ows oww ox- oxa oxo oxx ra- raa rae rak rao rar ras raw rax re- rea ree rek reo rer res rew rex rke rkk rko rks roa roe rok roo ror ros row rox rra rrk rrr rrs rsa rse rsk rso rsr rss rsw rsx rwa rwe rwr rws rxr rxs saa sae sak sao sar sas saw sax se- sea see sek seo ser ses sew sex sk- ska ske skk sko skr sks skw skx soa soe sok soo sor sos sow sox sr- sra sre srk sro srr srs srw srx ss- ssa sse ssk sso ssr sss ssw ssx swa swe swk swo swr sws sxs waa wae wak wao war was waw wax wea wee wek weo wer wes wew wex wka wke wko wkr wks wkw woa woe wok woo wor wos wow wox wr- wra wre wrk wro wrr wrs wrw wrx wsa wse wsk wso wsr wss wsw wsx wwa wwe wwo www wxw xaa xak xar xas xee xer xes xew xex xke xks xoa xok xoo xor xos xox xrx xsa xss xwa xxo xxx