-er -ey bbb bbe bbf bbn bbo bbr bbt bby be- beb bee bef ben beo ber bet bey bfb bfe bff bfn bfo bfr bft bfy bnb bne bnf bnn bno bnr bnt bob boe bof bon boo bor bot boy brb bre brf brn bro brr brt bry btb bte btf btn bto btr btt bty by- bye byf byn byo byr byt ebb ebe ebf ebn ebo ebr ebt eby eeb eee eef een eeo eer eet eey ef- efb efe eff efo efr eft en- enb ene enf enn eno enr ent eny eo- eob eoe eof eon eoo eor eot erb ere erf ern ero err ert ery etb ete etf etn eto etr ett ety eye eyn eyo eyr eyt fbb fbe fbf fbn fbo fbr fbt feb fee fef fen feo fer fet fey ffe fff ffn ffo ffr fft ffy fnb fne fnf fnn fnr fnt fob foe fof fon foo for fot foy frb fre frf frn fro frr frt fry ftb fte ftf ftn fto ftr ftt fty fy- fyb fye fyn fyo nbb nbe nbf nbn nbo nbr nbt ne- neb nee nef nen neo ner net ney nfb nfe nff nfn nfo nfr nft nnb nne nnf nnn nno nnt no- nob noe nof non noo nor not noy nrb nre nrf nrn nro nrr nrt nry ntb nte ntf ntn nto ntr ntt nye nyf nyn nyo nyt nyy ob- obb obe obf obn obo obr obt oby oeb oee oef oen oeo oer oet oey of- ofb ofe off ofn ofo ofr oft on- onb one onf onn ono onr ont ony oo- oob oof oon ooo oor oot or- orb ore orf orn oro orr ort ory ot- otb ote otf otn oto otr ott oye oyo rbb rbe rbf rbn rbo rbr rbt re- reb ree ref ren reo rer ret rey rfb rfe rff rfn rfo rfr rft rnb rnn rno rnr rnt rny rob roe rof ron roo ror rot roy rrb rrf rrn rrr rrt rtb rte rtf rtn rto rtr rtt rty ry- rye ryf ryn ryo ryr ryy tbb tbe tbf tbn tbo tbr tbt te- teb tee tef ten teo ter tet tey tfb tfe tff tfn tfo tfr tft tnb tne tnf tnn tno tnr tnt to- tob toe tof ton too tor tot toy trb tre trf trn tro trr trt try ttb tte ttf ttn tto ttr ttt tty tye tyf tyn tyo tyr tyt ybe ybf ybr yby yeb yee yef yen yeo yer yet yey yfe yff yfr yft yne ynn yny yob yoe yof yon yoo yor yot yoy yre yrf yrn yro yrt yte ytf ytn yto ytr ytt yyb yye yyf yyt yyy