a-a a-b a-i a-z aaa aab aai aak aao aar aas aaw aaz ab- aba abb abi abk abo abr abs abw abz ai- aia aib aii aik aio air ais aiw aiz aka akb aki akk ako akr aks akw aoa aob aoi aok aoo aor aos aow ar- ara arb ari ark aro arr ars arw arz as- asa asb asi ask aso asr ass asw asz aw- awa awb awi awk awo awr aws aww az- aza azb azi azo azs azw azz baa bab bai bak bao bar bas baw baz bba bbb bbi bbk bbo bbr bbs bbw bi- bia bib bii bik bio bir bis biw biz bka bkb bkk bko bkr bks bkw boa bob boi bok boo bor bos bow boz bra brb bri brk bro brr brs brw brz bsa bsb bsi bsk bso bsr bss bsw bwa bwb bwi bwk bwo bwr bws bza bzo bzr bzs bzz ia- iaa iab iai iao iar ias iaw iaz iba ibb ibi ibk ibo ibr ibs ibw ibz iia iib iii iio iir iis iiw ika ikb iki ikk iko ikr iks io- ioa iob ioi ioo ior ios iow ir- ira irb iri irk iro irr irs is- isa isb isi isk iso isr iss isw iwa iwb iwi iwk iwo iwr iws iww iwz iza izi izo izz k-z ka- kaa kab kai kak kao kar kas kaw kaz kba kbb kbi kbk kbo kbr kbs kbw kbz kia kib kii kik kio kir kis kiz kkb kki kkk kkr kks koa kob koi kok koo kor kos kow koz kra kri krk kro krr krs krw ksa ksb ksi ksk kso ksr kss ksw kw- kwa kwi kwk kwo kws kww kzo kzw o-i oaa oab oai oak oao oar oas oaw ob- oba obb obi obk obo obr obs obw oia oib oii oik oio oir ois oiz oka okb oki okk oko okr oks okw oo- ooa oob ooi ook ooo oor oos oow or- ora orb ori ork oro orr ors orz os- osa osb osi osk oso osr oss osw owa owb owi owk owo ows oww oza ozo ozs ozw ozz ra- raa rab rai rak rao rar ras raw raz rba rbb rbi rbk rbo rbr rbs rbw ria rib rii rik rio rir ris riz rkb rkk rko rks rkz roa rob roi rok roo ror ros row roz rra rrb rri rrk rrr rrs rsa rsb rsi rsk rso rsr rss rsw rwa rwb rwi rwr rws rza rzb rzo saa sab sai sak sao sar sas saw saz sba sbb sbi sbk sbo sbr sbs sbw sia sib sii sik sio sir sis siw sk- ska skb ski skk sko skr sks skw soa sob soi sok soo sor sos sow soz sr- sra srb sri srk sro srr srs srw ss- ssa ssb ssi ssk sso ssr sss ssw ssz swa swb swi swk swo swr sws sza szi szr waa wab wai wak wao war was waw waz wba wbb wbi wbo wbr wbs wbw wbz wia wib wii wik wir wis wiz wka wkb wko wkr wks wkw woa wob woi wok woo wor wos wow woz wr- wra wri wrk wro wrr wrs wrw wsa wsb wsi wsk wso wsr wss wsw wwa wwi wwo www zaa zab zai zak zao zar zas zaz zbb zbr zbs zbw zia zib zik zio zir zis ziw ziz zka zks zo- zoa zob zoi zok zoo zor zos zow zro zrs zsa zsi zsz zws zzr zzs zzz