-er -ey b-u bbb bbd bbe bbn bbo bbr bbu bby bdb bdd bde bdo bdr bdu bdy be- beb bed bee ben beo ber beu bey bnb bnd bne bnn bno bnr bnu bob bod boe bon boo bor bou boy brb brd bre brn bro brr bru bry bub bud bue bun buo bur buu buy by- byd bye byn byo byr byu dbb dbd dbe dbn dbo dbr dbu dby ddb ddd dde ddn ddo ddr ddu ddy de- deb ded dee den deo der deu dey dnb dnd dne dnn dno dnr dny dob dod doe don doo dor dou doy drb drd dre drn dro drr dru dry dub dud due dun duo dur duy dy- dyb dyd dye dyn dyo dyr dyu dyy ebb ebd ebe ebn ebo ebr ebu eby ed- edb edd ede edn edo edr edu edy eeb eed eee een eeo eer eey en- enb end ene enn eno enr enu eny eo- eob eod eoe eon eoo eor eou erb erd ere ern ero err eru ery eu- eub eud eue eun eur eyd eye eyn eyo eyr nbb nbd nbe nbn nbo nbr nbu ndb ndd nde ndn ndo ndr ndu ndy ne- neb ned nee nen neo ner neu ney nnb nne nnn nno nnu no- nob nod noe non noo nor nou noy nrb nrd nre nrn nro nrr nru nry nub nud nue nun nuo nur nuu nuy nyd nye nyn nyo nyu nyy ob- obb obd obe obn obo obr obu oby odb odd ode odn odo odr odu oeb oed oee oen oeo oer oey on- onb ond one onn ono onr onu ony oo- oob ood oon ooo oor or- orb ord ore orn oro orr oru ory ou- oud oue oun ouo our oyd oye oyo rbb rbd rbe rbn rbo rbr rbu rdb rdd rde rdn rdo rdr rdu rdy re- reb red ree ren reo rer reu rey rnb rnd rnn rno rnr rnu rny rob rod roe ron roo ror rou roy rrb rrd rrn rrr rru rub rud rue run ruo rur ruu ruy ry- ryd rye ryn ryo ryr ryu ryy ubb ube ubn ubo ubr ubu uby udb udd ude udn udo udr udu ueb ued uee uen uer uey un- unb und une unn uno unr unu uny uob uod uoe uon uoo uor ur- urb urd ure urn uro urr uru ury uue uun uur uuu uyo uyu ybe ybr yby yde ydn ydo ydy yeb yed yee yen yeo yer yey ynd yne ynn ynu yny yob yod yoe yon yoo yor you yoy yre yrn yro yru yud yue yun yuo yur yuu yuy yyb yye yyu yyy