a-a a-b aaa aab aad aag aao aar aas aau aay ab- aba abb abd abg abo abr abs abu aby ad- ada adb add adg ado adr ads adu ady ag- aga agb agd agg ago agr ags agu agy aoa aob aod aog aoo aor aos aou ar- ara arb ard arg aro arr ars aru ary as- asa asb asd asg aso asr ass asu asy au- aua aub aud aug auo aur aus ay- aya ayd ayo ayr ays ayu b-u baa bab bad bag bao bar bas bau bay bba bbb bbd bbg bbo bbr bbs bbu bby bda bdb bdd bdg bdo bdr bds bdu bdy bga bgb bgd bgg bgo bgr bgs bgu boa bob bod bog boo bor bos bou boy bra brb brd brg bro brr brs bru bry bsa bsb bsd bsg bso bsr bss bsu bsy bua bub bud bug buo bur bus buu buy by- bya byd byg byo byr bys byu daa dab dad dag dao dar das dau day dba dbb dbd dbg dbo dbr dbs dbu dby dda ddb ddd ddg ddo ddr dds ddu ddy dga dgd dgg dgr dgs dgu doa dob dod dog doo dor dos dou doy dra drb drd drg dro drr drs dru dry dsa dsb dsd dsg dso dsr dss dsu dsy dua dub dud dug duo dur dus duy dy- dya dyb dyd dyo dyr dys dyu dyy g-d gaa gab gad gag gao gar gas gau gay gba gbd gbg gbo gbr gbs gbu gby gda gdb gdd gdo gdr gds gdu gga ggb ggd ggg ggo ggr ggs ggu goa gob god gog goo gor gos gou goy gra grb grd grg gro grr grs gru gry gsa gsb gsd gsg gso gsr gss gsu gu- gua gub gud gug guo gur gus guu guy gy- gya gyb gyd gyo gyr gys oaa oab oad oag oao oar oas oau ob- oba obb obd obg obo obr obs obu oby oda odb odd odg odo odr ods odu oga ogd ogg ogo ogs ogy oo- ooa oob ood oog ooo oor oos or- ora orb ord org oro orr ors oru ory os- osa osb osd osg oso osr oss osu ou- oua oud ouo our ous oya oyd oyo oys ra- raa rab rad rag rao rar ras rau ray rba rbb rbd rbg rbo rbr rbs rbu rda rdb rdd rdg rdo rdr rds rdu rdy rga rgb rgd rgg rgo rgr rgs roa rob rod rog roo ror ros rou roy rra rrb rrd rrg rrr rrs rru rsa rsb rsd rsg rso rsr rss rsu rua rub rud rug ruo rur rus ruu ruy ry- rya ryd ryg ryo ryr rys ryu ryy saa sab sad sag sao sar sas sau say sba sbb sbd sbg sbo sbr sbs sbu sby sda sdb sdd sdg sdo sdr sds sdu sdy sga sgb sgd sgg sgo sgr sgs sgu soa sob sod sog soo sor sos sou soy sr- sra srb srd srg sro srr srs sry ss- ssa ssb ssd ssg sso ssr sss ssu sua sub sud sug suo sur sus suu suy sy- sya syb syd syg syr sys syu ua- uaa uab uad uag uao uar uas uau uay uba ubb ubg ubo ubr ubs ubu uby uda udb udd udg udo udr uds udu uga ugb ugg ugo ugr ugs ugu uoa uob uod uog uoo uor uos ur- ura urb urd urg uro urr urs uru ury usa usb usd usg uso usr uss usu uua uug uur uus uuu uyo uys uyu yaa yab yad yag yao yar yas yau yay ybg ybr ybs yby yda ydg ydo yds ydy yga ygo yob yod yog yoo yor yos you yoy yra yrg yro yrs yru ysa ysb ysg yso ysr yss ysu ysy yua yud yug yuo yur yus yuu yuy yyb yyg yys yyu yyy