-er -ey b-u bbb bbe bbh bbn bbo bbr bbu bby be- beb bee beh ben beo ber beu bey bhb bhe bhh bho bhr bhu bnb bne bnn bno bnr bnu bob boe boh bon boo bor bou boy brb bre brh brn bro brr bru bry bub bue buh bun buo bur buu buy by- bye byh byn byo byr byu ebb ebe ebh ebn ebo ebr ebu eby eeb eee een eeo eer eey ehb ehe ehh ehn eho ehr ehu en- enb ene enh enn eno enr enu eny eo- eob eoe eoh eon eoo eor eou erb ere erh ern ero err eru ery eu- eub eue eun eur eye eyn eyo eyr hbb hbe hbh hbn hbo hbr hbu hby he- heb hee heh hen heo her heu hey hhb hhe hhh hhn hho hhr hhu hhy hnb hne hnh hnn hno hnu hny hob hoe hoh hon hoo hor hou hoy hr- hrb hre hrh hrn hro hrr hru hub hue huh hun huo hur huu huy hy- hyb hye hyh hyn hyo hyr hyy nbb nbe nbn nbo nbr nbu ne- neb nee neh nen neo ner neu ney nhb nhe nhh nhn nhr nhu nhy nnb nne nnh nnn nno nnu no- nob noe noh non noo nor nou noy nrb nre nrn nro nrr nru nry nub nue nuh nun nuo nur nuu nuy nye nyn nyo nyu nyy ob- obb obe obh obn obo obr obu oby oeb oee oeh oen oeo oer oey ohe ohh ohn oho ohr ohu on- onb one onh onn ono onr onu ony oo- oob ooh oon ooo oor or- orb ore orh orn oro orr oru ory ou- oue ouh oun ouo our oye oyo rbb rbe rbh rbn rbo rbr rbu re- reb ree reh ren reo rer reu rey rh- rhb rhe rhh rhn rho rhr rhu rnb rnh rnn rno rnr rnu rny rob roe roh ron roo ror rou roy rrb rrh rrn rrr rru rub rue ruh run ruo rur ruu ruy ry- rye ryn ryo ryr ryu ryy ubb ube ubh ubn ubo ubr ubu uby ueb uee ueh uen uer uey uhb uhe uhh uho uhr uhu uhy un- unb une unh unn uno unr unu uny uob uoe uon uoo uor ur- urb ure urn uro urr uru ury uue uun uur uuu uyo uyu ybe ybr yby yeb yee yeh yen yeo yer yey yhe yhu yne ynn ynu yny yob yoe yon yoo yor you yoy yre yrn yro yru yue yuh yun yuo yur yuu yuy yyb yye yyu yyy