a-a a-b aaa aab aad aag aak aan aao aar aas aau ab- aba abb abd abg abk abn abo abr abs abu ad- ada adb add adg adk adn ado adr ads adu ag- aga agb agd agg agk agn ago agr ags agu aka akb akd akg akk akn ako akr aks aku an- ana anb and ang ank ann ano anr ans anu aoa aob aod aog aok aon aoo aor aos aou ar- ara arb ard arg ark arn aro arr ars aru as- asa asb asd asg ask asn aso asr ass asu au- aua aub aud aug auk aun auo aur aus b-u baa bab bad bag bak ban bao bar bas bau bba bbb bbd bbg bbk bbn bbo bbr bbs bbu bda bdb bdd bdg bdk bdo bdr bds bdu bga bgb bgd bgg bgk bgn bgo bgr bgs bgu bka bkb bkg bkk bkn bko bkr bks bna bnb bnd bng bnk bnn bno bnr bns bnu boa bob bod bog bok bon boo bor bos bou bra brb brd brg brk brn bro brr brs bru bsa bsb bsd bsg bsk bsn bso bsr bss bsu bua bub bud bug buk bun buo bur bus buu daa dab dad dag dak dan dao dar das dau dba dbb dbd dbg dbk dbn dbo dbr dbs dbu dda ddb ddd ddg ddk ddn ddo ddr dds ddu dga dgd dgg dgk dgn dgr dgs dgu dka dkb dkg dkk dko dkr dks dku dna dnb dnd dng dnk dnn dno dnr dns doa dob dod dog dok don doo dor dos dou dra drb drd drg drk drn dro drr drs dru dsa dsb dsd dsg dsk dsn dso dsr dss dsu dua dub dud dug duk dun duo dur dus g-d gaa gab gad gag gak gan gao gar gas gau gba gbd gbg gbk gbn gbo gbr gbs gbu gda gdb gdd gdk gdn gdo gdr gds gdu gga ggb ggd ggg ggn ggo ggr ggs ggu gka gkb gkd gkn gko gks gna gnb gnd gnn gno gnr gns gnu goa gob god gog gok gon goo gor gos gou gra grb grd grg grk grn gro grr grs gru gsa gsb gsd gsg gsk gsn gso gsr gss gsu gu- gua gub gud gug guk gun guo gur gus guu ka- kaa kab kad kag kak kan kao kar kas kau kba kbb kbd kbk kbn kbo kbr kbs kbu kda kdb kdg kdk kdo kdr kds kdu kga kgb kgd kgo kgs kgu kkb kkk kkn kkr kks kku kn- kna knd kng knk knn kno knr knu koa kob kod kog kok kon koo kor kos kou kra krd krg krk krn kro krr krs kru ksa ksb ksd ksg ksk ksn kso ksr kss ksu kub kud kug kuk kun kur kus kuu naa nab nad nag nak nan nao nar nas nau nba nbb nbd nbg nbk nbn nbo nbr nbs nbu nda ndb ndd ndg ndk ndn ndo ndr nds ndu nga ngb ngd ngg ngk ngn ngo ngs ngu nka nkk nkn nko nkr nks nku nna nnb nng nnk nnn nno nns nnu no- noa nob nod nog nok non noo nor nos nou nra nrb nrd nrg nrk nrn nro nrr nrs nru nsa nsb nsd nsg nsk nsn nso nsr nss nsu nua nub nud nug nuk nun nuo nur nus nuu oaa oab oad oag oak oan oao oar oas oau ob- oba obb obd obg obk obn obo obr obs obu oda odb odd odg odn odo odr ods odu oga ogd ogg ogn ogo ogs oka okb okd okg okk oko okr oks oku on- ona onb ond ong onk onn ono onr ons onu oo- ooa oob ood oog ook oon ooo oor oos or- ora orb ord org ork orn oro orr ors oru os- osa osb osd osg osk osn oso osr oss osu ou- oua oud ouk oun ouo our ous ra- raa rab rad rag rak ran rao rar ras rau rba rbb rbd rbg rbk rbn rbo rbr rbs rbu rda rdb rdd rdg rdn rdo rdr rds rdu rga rgb rgd rgg rgk rgn rgo rgr rgs rkb rkg rkk rko rks rku rna rnb rnd rng rnn rno rnr rns rnu roa rob rod rog rok ron roo ror ros rou rra rrb rrd rrg rrk rrn rrr rrs rru rsa rsb rsd rsg rsk rsn rso rsr rss rsu rua rub rud rug ruk run ruo rur rus ruu saa sab sad sag sak san sao sar sas sau sba sbb sbd sbg sbk sbn sbo sbr sbs sbu sda sdb sdd sdg sdk sdn sdo sdr sds sdu sga sgb sgd sgg sgk sgn sgo sgr sgs sgu sk- ska skb skd skg skk sko skr sks sku sna snb snd sng snk snn sno snr sns snu soa sob sod sog sok son soo sor sos sou sr- sra srb srd srg srk srn sro srr srs ss- ssa ssb ssd ssg ssk ssn sso ssr sss ssu sua sub sud sug suk sun suo sur sus suu ua- uaa uab uad uag uak uan uao uar uas uau uba ubb ubg ubk ubn ubo ubr ubs ubu uda udb udd udg udk udn udo udr uds udu uga ugb ugg ugk ugn ugo ugr ugs ugu uka ukb ukk ukn ukr uku un- una unb und ung unk unn uno unr uns unu uoa uob uod uog uok uon uoo uor uos ur- ura urb urd urg urk urn uro urr urs uru usa usb usd usg usk usn uso usr uss usu uua uug uun uur uus uuu