-er a-a a-b a-c aaa aab aac aad aae aag aak aao aar aas aau aaw ab- aba abb abc abd abe abg abk abo abr abs abu abw ac- aca acb acc acd ace acg ack aco acr acs acu acw ad- ada adb adc add ade adg adk ado adr ads adu adw aea aeb aec aed aee aeg aek aeo aer aes aeu aew ag- aga agb agc agd age agg agk ago agr ags agu agw aka akb akc akd ake akg akk ako akr aks aku akw aoa aob aoc aod aoe aog aok aoo aor aos aou aow ar- ara arb arc ard are arg ark aro arr ars aru arw as- asa asb asc asd ase asg ask aso asr ass asu asw au- aua aub auc aud aue aug auk auo aur aus auw aw- awa awb awc awd awe awg awk awo awr aws awu aww b-u baa bab bac bad bae bag bak bao bar bas bau baw bba bbb bbc bbd bbe bbg bbk bbo bbr bbs bbu bbw bca bcb bcc bcd bce bcg bck bco bcr bcs bcu bda bdb bdc bdd bde bdg bdk bdo bdr bds bdu bdw be- bea beb bec bed bee beg bek beo ber bes beu bew bga bgb bgc bgd bge bgg bgk bgo bgr bgs bgu bgw bka bkb bkc bke bkg bkk bko bkr bks bkw boa bob boc bod boe bog bok boo bor bos bou bow bra brb brd bre brg brk bro brr brs bru brw bsa bsb bsc bsd bse bsg bsk bso bsr bss bsu bsw bua bub buc bud bue bug buk buo bur bus buu buw bwa bwb bwc bwd bwg bwk bwo bwr bws bwu c-- caa cab cac cad cae cag cak cao car cas cau caw cba cbb cbc cbd cbe cbg cbk cbo cbr cbs cbu cbw cca ccb ccc ccd cce ccg cck cco ccr ccs ccu ccw cda cdb cdc cdd cde cdg cdk cdo cdr cds cdu cdw ce- cea ceb cec ced cee ceg cek ceo cer ces ceu cew cga cgb cgc cgd cge cgg cgo cgr cgs cgu cgw cka ckb ckc ckd cko cks ckw co- coa cob coc cod coe cog cok coo cor cos cou cow cra crb crc crd cre crg crk cro crr crs cru crw csa csb csc csd cse csg csk cso csr css csu csw cua cub cuc cud cue cug cuk cuo cur cus cuu cuw cw- cwa cwb cwc cwd cwe cwg cwk cwo cwr cws cwu daa dab dac dad dae dag dak dao dar das dau daw dba dbb dbc dbd dbe dbg dbk dbo dbr dbs dbu dca dcb dcc dcd dce dcg dck dco dcr dcs dcu dcw dda ddb ddc ddd dde ddg ddk ddo ddr dds ddu ddw de- dea deb dec ded dee deg dek deo der des deu dew dga dgc dgd dge dgg dgk dgr dgs dgu dgw dka dkb dkc dke dkg dkk dko dkr dks dku dkw doa dob doc dod doe dog dok doo dor dos dou dow dra drb drc drd dre drg drk dro drr drs dru drw dsa dsb dsc dsd dse dsg dsk dso dsr dss dsu dsw dua dub duc dud due dug duk duo dur dus dwa dwb dwc dwe dwg dwo dwr dws dwu dww eaa eab eac ead eae eag eak eao ear eas eau eaw eba ebb ebc ebd ebe ebg ebk ebo ebr ebs ebu ebw ec- eca ecb ecc ecd ece ecg eck eco ecr ecs ecu ecw ed- eda edb edc edd ede edg edk edo edr eds edu edw eea eeb eec eed eee eeg eek eeo eer ees eew ega egb egc egd ege egg ego egr egs egu egw eka ekb ekc ekd eke ekg eko ekr eks eku eo- eoa eob eoc eod eoe eog eok eoo eor eos eou eow era erb erc erd ere erg erk ero err ers eru erw es- esa esb esc esd ese esg esk eso esr ess esu esw eu- eua eub euc eud eue eug eur eus ewa ewb ewc ewd ewe ewk ewo ewr ews ewu eww g-d gaa gab gac gad gae gag gak gao gar gas gau gaw gba gbc gbd gbe gbg gbk gbo gbr gbs gbu gbw gca gcb gcc gcd gce gcg gck gco gcr gcs gcu gcw gda gdb gdc gdd gde gdk gdo gdr gds gdu gdw ge- gea geb gec ged gee geg gek geo ger ges geu gew gga ggb ggc ggd ggg ggo ggr ggs ggu ggw gka gkb gkd gko gks goa gob goc god goe gog gok goo gor gos gou gow gra grb grc grd gre grg grk gro grr grs gru grw gsa gsb gsc gsd gse gsg gsk gso gsr gss gsu gsw gu- gua gub guc gud gue gug guk guo gur gus guu gwa gwb gwc gwd gwe gwg gwk gwr gws gwu ka- kaa kab kac kad kae kag kak kao kar kas kau kaw kba kbb kbc kbd kbe kbk kbo kbr kbs kbu kbw kca kcb kcc kcd kce kcg kck kcr kcs kcu kda kdb kdc kde kdg kdk kdo kdr kds kdu ke- kea keb kec ked kee keg kek keo ker kes kew kga kgb kgc kgd kgo kgs kgu kgw kkb kkc kke kkk kkr kks kku koa kob koc kod koe kog kok koo kor kos kou kow kra krc krd krg krk kro krr krs kru krw ksa ksb ksc ksd kse ksg ksk kso ksr kss ksu ksw kub kuc kud kue kug kuk kur kus kuu kw- kwa kwc kwd kwg kwk kwo kws kww oaa oab oac oad oae oag oak oao oar oas oau oaw ob- oba obb obc obd obe obg obk obo obr obs obu obw oc- oca ocb occ ocd ocg