-er a-a a-b aaa aab aad aae aag aak aan aao aar aas aau ab- aba abb abd abe abg abk abn abo abr abs abu ad- ada adb add ade adg adk adn ado adr ads adu aea aeb aed aee aeg aek aen aeo aer aes aeu ag- aga agb agd age agg agk agn ago agr ags agu aka akb akd ake akg akk akn ako akr aks aku an- ana anb and ane ang ank ann ano anr ans anu aoa aob aod aoe aog aok aon aoo aor aos aou ar- ara arb ard are arg ark arn aro arr ars aru as- asa asb asd ase asg ask asn aso asr ass asu au- aua aub aud aue aug auk aun auo aur aus b-u baa bab bad bae bag bak ban bao bar bas bau bba bbb bbd bbe bbg bbk bbn bbo bbr bbs bbu bda bdb bdd bde bdg bdk bdo bdr bds bdu be- bea beb bed bee beg bek ben beo ber bes beu bga bgb bgd bge bgg bgk bgn bgo bgr bgs bgu bka bkb bke bkg bkk bkn bko bkr bks bna bnb bnd bne bng bnk bnn bno bnr bns bnu boa bob bod boe bog bok bon boo bor bos bou bra brb brd bre brg brk brn bro brr brs bru bsa bsb bsd bse bsg bsk bsn bso bsr bss bsu bua bub bud bue bug buk bun buo bur bus buu daa dab dad dae dag dak dan dao dar das dau dba dbb dbd dbe dbg dbk dbn dbo dbr dbs dbu dda ddb ddd dde ddg ddk ddn ddo ddr dds ddu de- dea deb ded dee deg dek den deo der des deu dga dgd dge dgg dgk dgn dgr dgs dgu dka dkb dke dkg dkk dko dkr dks dku dna dnb dnd dne dng dnk dnn dno dnr dns doa dob dod doe dog dok don doo dor dos dou dra drb drd dre drg drk drn dro drr drs dru dsa dsb dsd dse dsg dsk dsn dso dsr dss dsu dua dub dud due dug duk dun duo dur dus eaa eab ead eae eag eak ean eao ear eas eau eba ebb ebd ebe ebg ebk ebn ebo ebr ebs ebu ed- eda edb edd ede edg edk edn edo edr eds edu eea eeb eed eee eeg eek een eeo eer ees ega egb egd ege egg egn ego egr egs egu eka ekb ekd eke ekg eko ekr eks eku en- ena enb end ene eng enk enn eno enr ens enu eo- eoa eob eod eoe eog eok eon eoo eor eos eou era erb erd ere erg erk ern ero err ers eru es- esa esb esd ese esg esk esn eso esr ess esu eu- eua eub eud eue eug eun eur eus g-d gaa gab gad gae gag gak gan gao gar gas gau gba gbd gbe gbg gbk gbn gbo gbr gbs gbu gda gdb gdd gde gdk gdn gdo gdr gds gdu ge- gea geb ged gee geg gek gen geo ger ges geu gga ggb ggd ggg ggn ggo ggr ggs ggu gka gkb gkd gkn gko gks gna gnb gnd gne gnn gno gnr gns gnu goa gob god goe gog gok gon goo gor gos gou gra grb grd gre grg grk grn gro grr grs gru gsa gsb gsd gse gsg gsk gsn gso gsr gss gsu gu- gua gub gud gue gug guk gun guo gur gus guu ka- kaa kab kad kae kag kak kan kao kar kas kau kba kbb kbd kbe kbk kbn kbo kbr kbs kbu kda kdb kde kdg kdk kdo kdr kds kdu ke- kea keb ked kee keg kek ken keo ker kes kga kgb kgd kgo kgs kgu kkb kke kkk kkn kkr kks kku kn- kna knd kne kng knk knn kno knr knu koa kob kod koe kog kok kon koo kor kos kou kra krd krg krk krn kro krr krs kru ksa ksb ksd kse ksg ksk ksn kso ksr kss ksu kub kud kue kug kuk kun kur kus kuu naa nab nad nae nag nak nan nao nar nas nau nba nbb nbd nbe nbg nbk nbn nbo nbr nbs nbu nda ndb ndd nde ndg ndk ndn ndo ndr nds ndu ne- nea neb ned nee neg nek nen neo ner nes neu nga ngb ngd nge ngg ngk ngn ngo ngs ngu nka nke nkk nkn nko nkr nks nku nna nnb nne nng nnk nnn nno nns nnu no- noa nob nod noe nog nok non noo nor nos nou nra nrb nrd nre nrg nrk nrn nro nrr nrs nru nsa nsb nsd nse nsg nsk nsn nso nsr nss nsu nua nub nud nue nug nuk nun nuo nur nus nuu oaa oab oad oae oag oak oan oao oar oas oau ob- oba obb obd obe obg obk obn obo obr obs obu oda odb odd ode odg odn odo odr ods odu oea oeb oed oee oeg oen oeo oer oes oga ogd oge ogg ogn ogo ogs oka okb okd oke okg okk oko okr oks oku on- ona onb ond one ong onk onn ono onr ons onu oo- ooa oob ood oog ook oon ooo oor oos or- ora orb ord ore org ork orn oro orr ors oru os- osa osb osd ose osg osk osn oso osr oss osu ou- oua oud oue ouk oun ouo our ous ra- raa rab rad rae rag rak ran rao rar ras rau rba rbb rbd rbe rbg rbk rbn rbo rbr rbs rbu rda rdb rdd rde rdg rdn rdo rdr rds rdu re- rea reb red ree reg rek ren reo rer res reu rga rgb rgd rge rgg rgk rgn rgo rgr rgs rkb rke rkg rkk rko rks rku rna rnb rnd rng