-er -ey bbb bbe bbk bbn bbr bbs bbt bby be- beb bee bek ben ber bes bet bey bkb bke bkk bkn bkr bks bkt bnb bne bnk bnn bnr bns bnt brb bre brk brn brr brs brt bry bsb bse bsk bsn bsr bss bst bsy btb bte btk btn btr bts btt bty by- bye byk byn byr bys byt ebb ebe ebk ebn ebr ebs ebt eby eeb eee eek een eer ees eet eey ekb eke ekr eks ekt eky en- enb ene enk enn enr ens ent eny erb ere erk ern err ers ert ery es- esb ese esk esn esr ess est esy etb ete etk etn etr ets ett ety eye eyn eyr eys eyt k-t kbb kbe kbk kbn kbr kbs ke- keb kee kek ken ker kes ket key kkb kke kkk kkn kkr kks kkt kky kn- kne knk knn knr knt krk krn krr krs krt kry ksb kse ksk ksn ksr kss kst ktb kte ktk ktn ktr kts ktt kye kyn kyr kys kyt nbb nbe nbk nbn nbr nbs nbt ne- neb nee nek nen ner nes net ney nke nkk nkn nkr nks nkt nky nnb nne nnk nnn nns nnt nrb nre nrk nrn nrr nrs nrt nry nsb nse nsk nsn nsr nss nst nsy ntb nte ntk ntn ntr nts ntt nye nyk nyn nys nyt nyy rbb rbe rbk rbn rbr rbs rbt re- reb ree rek ren rer res ret rey rkb rke rkk rks rkt rky rnb rnn rnr rns rnt rny rrb rrk rrn rrr rrs rrt rsb rse rsk rsn rsr rss rst rtb rte rtk rtn rtr rts rtt rty ry- rye ryk ryn ryr rys ryy sbb sbe sbk sbn sbr sbs sbt sby se- seb see sek sen ser ses set sey sk- skb ske skk skr sks skt sky snb sne snk snn snr sns snt sny sr- srb sre srk srn srr srs srt sry ss- ssb sse ssk ssn ssr sss sst stb ste stk stn str sts stt sty sy- syb sye syk syn syr sys syt tbb tbe tbk tbn tbr tbs tbt te- teb tee tek ten ter tes tet tey tkb tke tkk tkr tks tkt tky tnb tne tnk tnn tnr tns tnt trb tre trk trn trr trs trt try tsb tse tsk tsn tsr tss tst tsy ttb tte ttk ttn ttr tts ttt tty tye tyn tyr tys tyt ybe ybr ybs yby yeb yee yek yen yer yes yet yey ykk ykn yne ynk ynn yns yny yre yrn yrs yrt ysb yse ysk ysr yss yst ysy yte ytk ytn ytr yts ytt yyb yye yys yyt yyy