-er -ey b-u bbb bbe bbn bbr bbs bbt bbu bby be- beb bee ben ber bes bet beu bey bnb bne bnn bnr bns bnt bnu brb bre brn brr brs brt bru bry bsb bse bsn bsr bss bst bsu bsy btb bte btn btr bts btt btu bty bub bue bun bur bus but buu buy by- bye byn byr bys byt byu ebb ebe ebn ebr ebs ebt ebu eby eeb eee een eer ees eet eey en- enb ene enn enr ens ent enu eny erb ere ern err ers ert eru ery es- esb ese esn esr ess est esu esy etb ete etn etr ets ett etu ety eu- eub eue eun eur eus eut eye eyn eyr eys eyt nbb nbe nbn nbr nbs nbt nbu ne- neb nee nen ner nes net neu ney nnb nne nnn nns nnt nnu nrb nre nrn nrr nrs nrt nru nry nsb nse nsn nsr nss nst nsu nsy ntb nte ntn ntr nts ntt ntu nub nue nun nur nus nut nuu nuy nye nyn nys nyt nyu nyy rbb rbe rbn rbr rbs rbt rbu re- reb ree ren rer res ret reu rey rnb rnn rnr rns rnt rnu rny rrb rrn rrr rrs rrt rru rsb rse rsn rsr rss rst rsu rtb rte rtn rtr rts rtt rtu rty rub rue run rur rus rut ruu ruy ry- rye ryn ryr rys ryu ryy sbb sbe sbn sbr sbs sbt sbu sby se- seb see sen ser ses set seu sey snb sne snn snr sns snt snu sny sr- srb sre srn srr srs srt sry ss- ssb sse ssn ssr sss sst ssu stb ste stn str sts stt stu sty sub sue sun sur sus sut suu suy sy- syb sye syn syr sys syt syu tbb tbe tbn tbr tbs tbt tbu te- teb tee ten ter tes tet teu tey tnb tne tnn tnr tns tnt trb tre trn trr trs trt tru try tsb tse tsn tsr tss tst tsu tsy ttb tte ttn ttr tts ttt ttu tty tub tue tun tur tus tut tuu tuy tye tyn tyr tys tyt ubb ube ubn ubr ubs ubt ubu uby ueb uee uen uer ues uet uey un- unb une unn unr uns unt unu uny ur- urb ure urn urr urs urt uru ury usb use usn usr uss ust usu utb ute utn utr uts utt utu uty uue uun uur uus uut uuu uys uyu ybe ybr ybs yby yeb yee yen yer yes yet yey yne ynn yns ynu yny yre yrn yrs yrt yru ysb yse ysr yss yst ysu ysy yte ytn ytr yts ytt ytu yue yun yur yus yut yuu yuy yyb yye yys yyt yyu yyy