-er -ey a-a a-b aaa aab aae aag aao aar aas aau aay ab- aba abb abe abg abo abr abs abu aby aea aeb aee aeg aeo aer aes aeu aey ag- aga agb age agg ago agr ags agu agy aoa aob aoe aog aoo aor aos aou ar- ara arb are arg aro arr ars aru ary as- asa asb ase asg aso asr ass asu asy au- aua aub aue aug auo aur aus ay- aya aye ayo ayr ays ayu b-u baa bab bae bag bao bar bas bau bay bba bbb bbe bbg bbo bbr bbs bbu bby be- bea beb bee beg beo ber bes beu bey bga bgb bge bgg bgo bgr bgs bgu boa bob boe bog boo bor bos bou boy bra brb bre brg bro brr brs bru bry bsa bsb bse bsg bso bsr bss bsu bsy bua bub bue bug buo bur bus buu buy by- bya bye byg byo byr bys byu eaa eab eae eag eao ear eas eau eba ebb ebe ebg ebo ebr ebs ebu eby eea eeb eee eeg eeo eer ees eey ega egb ege egg ego egr egs egu egy eo- eoa eob eoe eog eoo eor eos eou era erb ere erg ero err ers eru ery es- esa esb ese esg eso esr ess esu esy eu- eua eub eue eug eur eus eya eye eyo eyr eys gaa gab gae gag gao gar gas gau gay gba gbe gbg gbo gbr gbs gbu gby ge- gea geb gee geg geo ger ges geu gey gga ggb ggg ggo ggr ggs ggu goa gob goe gog goo gor gos gou goy gra grb gre grg gro grr grs gru gry gsa gsb gse gsg gso gsr gss gsu gu- gua gub gue gug guo gur gus guu guy gy- gya gyb gye gyo gyr gys oaa oab oae oag oao oar oas oau ob- oba obb obe obg obo obr obs obu oby oea oeb oee oeg oeo oer oes oey oga oge ogg ogo ogs ogy oo- ooa oob oog ooo oor oos or- ora orb ore org oro orr ors oru ory os- osa osb ose osg oso osr oss osu ou- oua oue ouo our ous oya oye oyo oys ra- raa rab rae rag rao rar ras rau ray rba rbb rbe rbg rbo rbr rbs rbu re- rea reb ree reg reo rer res reu rey rga rgb rge rgg rgo rgr rgs roa rob roe rog roo ror ros rou roy rra rrb rrg rrr rrs rru rsa rsb rse rsg rso rsr rss rsu rua rub rue rug ruo rur rus ruu ruy ry- rya rye ryg ryo ryr rys ryu ryy saa sab sae sag sao sar sas sau say sba sbb sbe sbg sbo sbr sbs sbu sby se- sea seb see seg seo ser ses seu sey sga sgb sge sgg sgo sgr sgs sgu soa sob soe sog soo sor sos sou soy sr- sra srb sre srg sro srr srs sry ss- ssa ssb sse ssg sso ssr sss ssu sua sub sue sug suo sur sus suu suy sy- sya syb sye syg syr sys syu ua- uaa uab uae uag uao uar uas uau uay uba ubb ube ubg ubo ubr ubs ubu uby uea ueb uee ueg uer ues uey uga ugb uge ugg ugo ugr ugs ugu uoa uob uoe uog uoo uor uos ur- ura urb ure urg uro urr urs uru ury usa usb use usg uso usr uss usu uua uue uug uur uus uuu uyo uys uyu yaa yab yae yag yao yar yas yau yay ybe ybg ybr ybs yby yea yeb yee yeg yeo yer yes yey yga ygo yob yoe yog yoo yor yos you yoy yra yre yrg yro yrs yru ysa ysb yse ysg yso ysr yss ysu ysy yua yue yug yuo yur yus yuu yuy yyb yye yyg yys yyu yyy