-er -ey -up b-p b-u bbb bbc bbe bbk bbn bbo bbp bbr bbs bbt bbu bby bcb bcc bce bck bcn bco bcp bcr bcs bct bcu bcy be- beb bec bee bek ben beo bep ber bes bet beu bey bkb bkc bke bkk bkn bko bkp bkr bks bkt bnb bnc bne bnk bnn bno bnp bnr bns bnt bnu bob boc boe bok bon boo bop bor bos bot bou boy bpb bpc bpe bpn bpo bpp bpr bps bpt bpu bpy brb bre brk brn bro brp brr brs brt bru bry bsb bsc bse bsk bsn bso bsp bsr bss bst bsu bsy btb btc bte btk btn bto btp btr bts btt btu bty bub buc bue buk bun buo bup bur bus but buu buy by- byc bye byk byn byo byp byr bys byt byu c-- cbb cbc cbe cbk cbn cbo cbp cbr cbs cbt cbu cby ccb ccc cce cck ccn cco ccp ccr ccs cct ccu ce- ceb cec cee cek cen ceo cep cer ces cet ceu cey ckb ckc cko cks ckt cky cn- cnb cnc cne cnn cno cnp cnr cns cnt cnu cny co- cob coc coe cok con coo cop cor cos cot cou coy cpb cpc cpe cpk cpn cpo cpp cpr cps cpt cpu crb crc cre crk crn cro crp crr crs crt cru cry csb csc cse csk csn cso csp csr css cst csu csy ctb ctc cte ctk ctn cto ctp ctr cts ctt ctu cty cub cuc cue cuk cun cuo cup cur cus cut cuu cuy cyb cyc cye cyk cyn cyo cyp cyr cys cyt ebb ebc ebe ebk ebn ebo ebp ebr ebs ebt ebu eby ec- ecb ecc ece eck ecn eco ecr ecs ect ecu eeb eec eee eek een eeo eep eer ees eet eey ekb ekc eke eko ekp ekr eks ekt eku eky en- enb enc ene enk enn eno enp enr ens ent enu eny eo- eob eoc eoe eok eon eoo eop eor eos eot eou ep- epb epc epe epn epo epp epr eps ept epu erb erc ere erk ern ero erp err ers ert eru ery es- esb esc ese esk esn eso esp esr ess est esu esy etb etc ete etk etn eto etp etr ets ett etu ety eu- eub euc eue eun eup eur eus eut eyc eye eyn eyo eyp eyr eys eyt k-t kbb kbc kbe kbk kbn kbo kbp kbr kbs kbu kcb kcc kce kck kcn kcp kcr kcs kct kcu ke- keb kec kee kek ken keo kep ker kes ket key kkb kkc kke kkk kkn kkp kkr kks kkt kku kky kn- knc kne knk knn kno knp knr knt knu kob koc koe kok kon koo kop kor kos kot kou koy kpc kpe kpk kpn kpo kpp kpr kps kpt kpu krc krk krn kro krp krr krs krt kru kry ksb ksc kse ksk ksn kso ksp ksr kss kst ksu ktb ktc kte ktk ktn kto ktp ktr kts ktt ktu kub kuc kue kuk kun kup kur kus kut kuu kuy kyc kye kyn kyo kyp kyr kys kyt kyu nbb nbc nbe nbk nbn nbo nbp nbr nbs nbt nbu ncb ncc nce nck ncn nco ncp ncr ncs nct ncu ne- neb nec nee nek nen neo nep ner nes net neu ney nkc nke nkk nkn nko nkp nkr nks nkt nku nky nnb nnc nne nnk nnn nno nnp nns nnt nnu no- nob noc noe nok non noo nop nor nos not nou noy npb npc npe npn npo npp npr nps npt npu nrb nrc nre nrk nrn nro nrp nrr nrs nrt nru nry nsb nsc nse nsk nsn nso nsp nsr nss nst nsu nsy ntb ntc nte ntk ntn nto ntp ntr nts ntt ntu nub nuc nue nuk nun nuo nup nur nus nut nuu nuy nyc nye nyk nyn nyo nyp nys nyt nyu nyy ob- obb obc obe obk obn obo obp obr obs obt obu oby oc- ocb occ ock ocn oco ocp ocr ocs oct ocu oeb oec oee oen oeo oep oer oes oet oey okb okc oke okk oko okp okr oks oku on- onb onc one onk onn ono onp onr ons ont onu ony oo- oob ooc ook oon ooo oop oor oos oot op- opb opc ope opk opn opo opp opr ops opt opy or- orb orc ore ork orn oro orp orr ors ort oru ory os- osb osc ose osk osn oso osp osr oss ost osu ot- otb otc ote otk otn oto otp otr ots ott otu ou- ouc oue ouk oun ouo oup our ous out oye oyo oys p-p pbb pbc pbe pbk pbn pbo pbp pbr pbs pbt pbu pby pcb pcc pce pck pcn pco pcp pcr pcs pct pcu peb pec pee pek pen peo pep per pes pet peu pey pkb pkc pke pkn pko pkp pkr pks pkt pku pky pn- pnb pnc pne pnk pnn pno pnp pnr pns pnt pnu pny pob poc poe pok pon poo pop por pos pot pou poy ppb ppc ppe ppk ppn ppo ppp ppr pps ppt ppu prb prc pre prk prn pro prp prr prs prt pru pry ps- psb psc pse psk psn pso psp psr pss pst psu psy pt- ptb ptc pte ptk ptn pto ptp ptr pts ptt ptu pty pub puc pue puk pun pup pur pus put puu puy py- pyb pyc pye pyk pyn pyo pyr pys pyt pyu rbb rbc rbe rbk rbn rbo rbp rbr rbs rbt rbu rcb rcc rce rcn rco rcp rcr rcs rct rcu re- reb rec ree rek ren reo rep rer res ret reu rey rkb rkc rke rkk rko rkp rks rkt rku rky rnb rnc rnn rno rnp rnr