-er -ey bbb bbe bbi bbk bbn bbo bbr bbs bbt bby be- beb bee bei bek ben beo ber bes bet bey bi- bib bie bii bik bin bio bir bis bit biy bkb bke bkk bkn bko bkr bks bkt bnb bne bni bnk bnn bno bnr bns bnt bob boe boi bok bon boo bor bos bot boy brb bre bri brk brn bro brr brs brt bry bsb bse bsi bsk bsn bso bsr bss bst bsy btb bte bti btk btn bto btr bts btt bty by- bye byi byk byn byo byr bys byt ebb ebe ebi ebk ebn ebo ebr ebs ebt eby eeb eee eek een eeo eer ees eet eey eib eie eii eik ein eio eir eis eit ekb eke eki eko ekr eks ekt eky en- enb ene eni enk enn eno enr ens ent eny eo- eob eoe eoi eok eon eoo eor eos eot erb ere eri erk ern ero err ers ert ery es- esb ese esi esk esn eso esr ess est esy etb ete eti etk etn eto etr ets ett ety eye eyn eyo eyr eys eyt ibb ibe ibi ibk ibn ibo ibr ibs ibt iby ie- iee iei iek ien ier ies iet iey iib iie iii iin iio iir iis iit ikb ike iki ikk iko ikr iks ikt in- inb ine ini ink inn ino inr ins int iny io- iob ioe ioi ion ioo ior ios iot ir- irb ire iri irk irn iro irr irs irt iry is- isb ise isi isk isn iso isr iss ist isy itb ite iti itk itn ito its itt ity iye iyo iyr iys iyt iyy k-t kbb kbe kbi kbk kbn kbo kbr kbs ke- keb kee kei kek ken keo ker kes ket key kib kie kii kik kin kio kir kis kit kkb kke kki kkk kkn kkr kks kkt kky kn- kne kni knk knn kno knr knt kob koe koi kok kon koo kor kos kot koy kri krk krn kro krr krs krt kry ksb kse ksi ksk ksn kso ksr kss kst ktb kte ktk ktn kto ktr kts ktt kye kyn kyo kyr kys kyt n-i nbb nbe nbi nbk nbn nbo nbr nbs nbt ne- neb nee nei nek nen neo ner nes net ney nib nie nii nik nin nio nir nis nit nke nki nkk nkn nko nkr nks nkt nky nnb nne nni nnk nnn nno nns nnt no- nob noe noi nok non noo nor nos not noy nrb nre nri nrk nrn nro nrr nrs nrt nry nsb nse nsi nsk nsn nso nsr nss nst nsy ntb nte nti ntk ntn nto ntr nts ntt nye nyk nyn nyo nys nyt nyy o-i ob- obb obe obi obk obn obo obr obs obt oby oeb oee oei oen oeo oer oes oet oey oib oie oii oik oin oio oir ois oit okb oke oki okk oko okr oks on- onb one oni onk onn ono onr ons ont ony oo- oob ooi ook oon ooo oor oos oot or- orb ore ori ork orn oro orr ors ort ory os- osb ose osi osk osn oso osr oss ost ot- otb ote oti otk otn oto otr ots ott oye oyi oyo oys rbb rbe rbi rbk rbn rbo rbr rbs rbt re- reb ree rei rek ren reo rer res ret rey rib rie rii rik rin rio rir ris rit riy rkb rke rkk rko rks rkt rky rnb rni rnn rno rnr rns rnt rny rob roe roi rok ron roo ror ros rot roy rrb rri rrk rrn rrr rrs rrt rsb rse rsi rsk rsn rso rsr rss rst rtb rte rti rtk rtn rto rtr rts rtt rty ry- rye ryk ryn ryo ryr rys ryy sbb sbe sbi sbk sbn sbo sbr sbs sbt sby se- seb see sei sek sen seo ser ses set sey sib sie sii sik sin sio sir sis sit sk- skb ske ski skk sko skr sks skt sky snb sne sni snk snn sno snr sns snt sny sob soe soi sok son soo sor sos sot soy sr- srb sre sri srk srn sro srr srs srt sry ss- ssb sse ssi ssk ssn sso ssr sss sst stb ste sti stk stn sto str sts stt sty sy- syb sye syi syk syn syr sys syt tbb tbe tbi tbk tbn tbo tbr tbs tbt te- teb tee tei tek ten teo ter tes tet tey tib tie tii tik tin tio tir tis tit tiy tkb tke tkk tko tkr tks tkt tky tnb tne tni tnk tnn tno tnr tns tnt to- tob toe toi tok ton too tor tos tot toy trb tre tri trk trn tro trr trs trt try tsb tse tsi tsk tsn tso tsr tss tst tsy ttb tte tti ttk ttn tto ttr tts ttt tty tye tyn tyo tyr tys tyt ybe ybi ybr ybs yby yeb yee yei yek yen yeo yer yes yet yey yie yii yin yio yir yis yit yki ykk ykn yne ynk ynn yns yny yob yoe yoi yok yon yoo yor yos yot yoy yre yrn yro yrs yrt ysb yse ysi ysk yso ysr yss yst ysy yte ytk ytn yto ytr yts ytt yyb yye yys yyt yyy