-er -ic -ol -up b-p b-u bbb bbc bbe bbi bbk bbl bbm bbn bbo bbp bbr bbs bbt bbu bcb bcc bce bci bck bcl bcm bcn bco bcp bcr bcs bct bcu be- beb bec bee bei bek bel bem ben beo bep ber bes bet beu bi- bib bic bie bii bik bil bim bin bio bip bir bis bit biu bkb bkc bke bkk bkl bkm bkn bko bkp bkr bks bkt blb blc ble bli blk bll blm bln blo blp blr bls blt blu bmb bmc bme bmi bmk bml bmm bmn bmo bmp bmr bms bmt bmu bnb bnc bne bni bnk bnl bnn bno bnp bnr bns bnt bnu bob boc boe boi bok bol bom bon boo bop bor bos bot bou bpb bpc bpe bpi bpl bpm bpn bpo bpp bpr bps bpt bpu brb bre bri brk brl brm brn bro brp brr brs brt bru bsb bsc bse bsi bsk bsl bsm bsn bso bsp bsr bss bst bsu btb btc bte bti btk btl btm btn bto btp btr bts btt btu bub buc bue bui buk bul bum bun buo bup bur bus but buu c-- cbb cbc cbe cbi cbk cbl cbm cbn cbo cbp cbr cbs cbt cbu ccb ccc cce cci cck ccl ccm ccn cco ccp ccr ccs cct ccu ce- ceb cec cee cei cek cel cem cen ceo cep cer ces cet ceu ci- cib cic cie cii cik cil cim cin cio cip cir cis cit ciu ckb ckc cki ckm cko cks ckt cl- clb clc cle cli clk cll clm cln clo clp clr cls clt clu cmb cmc cme cmi cmk cml cmm cmn cmo cmp cmr cms cmt cmu cn- cnb cnc cne cni cnl cnm cnn cno cnp cnr cns cnt cnu co- cob coc coe coi cok col com con coo cop cor cos cot cou cpb cpc cpe cpi cpk cpl cpm cpn cpo cpp cpr cps cpt cpu crb crc cre cri crk crl crm crn cro crp crr crs crt cru csb csc cse csi csk csl csm csn cso csp csr css cst csu ctb ctc cte cti ctk ctl ctm ctn cto ctp ctr cts ctt ctu cub cuc cue cui cuk cul cum cun cuo cup cur cus cut cuu ebb ebc ebe ebi ebk ebl ebm ebn ebo ebp ebr ebs ebt ebu ec- ecb ecc ece eci eck ecl ecm ecn eco ecr ecs ect ecu eeb eec eee eek eel eem een eeo eep eer ees eet eib eic eie eii eik eil eim ein eio eip eir eis eit eiu ekb ekc eke eki ekl eko ekp ekr eks ekt eku elb elc ele eli elk ell elm eln elo elp elr els elt elu em- emb emc eme emi emk eml emm emn emo emp emr ems emt emu en- enb enc ene eni enk enl enm enn eno enp enr ens ent enu eo- eob eoc eoe eoi eok eol eom eon eoo eop eor eos eot eou ep- epb epc epe epi epl epm epn epo epp epr eps ept epu erb erc ere eri erk erl erm ern ero erp err ers ert eru es- esb esc ese esi esk esl esm esn eso esp esr ess est esu etb etc ete eti etk etl etm etn eto etp etr ets ett etu eu- eub euc eue eui eul eun eup eur eus eut ibb ibc ibe ibi ibk ibl ibm ibn ibo ibp ibr ibs ibt ibu icb icc ice ici ick icl icm icn ico icp icr ics ict icu ie- iec iee iei iek iel iem ien iep ier ies iet iib iic iie iii iil iim iin iio iip iir iis iit iiu ikb ikc ike iki ikk ikl iko ikr iks ikt iku il- ilb ilc ile ili ilk ill ilm iln ilo ilp ilr ils ilt ilu im- imb imc ime imi iml imm imn imo imp ims imt imu in- inb inc ine ini ink inl inm inn ino inp inr ins int inu io- iob ioc ioe ioi iol iom ion ioo iop ior ios iot iou ipb ipc ipe ipi ipl ipm ipn ipo ipp ipr ips ipt ipu ir- irb irc ire iri irk irl irm irn iro irp irr irs irt iru is- isb isc ise isi isk isl ism isn iso isp isr iss ist isu itb itc ite iti itk itl itm itn ito itp its itt itu iu- iub iuc iue iui ium iup iur ius iut k-t kbb kbc kbe kbi kbk kbl kbm kbn kbo kbp kbr kbs kbu kcb kcc kce kci kck kcl kcm kcn kcp kcr kcs kct kcu ke- keb kec kee kei kek kel kem ken keo kep ker kes ket kib kic kie kii kik kil kim kin kio kip kir kis kit kiu kkb kkc kke kki kkk kkl kkm kkn kkp kkr kks kkt kku kl- klb klc kli klm klo klr kls klt klu kmb kmc kme kmi kmk kml kmm kmo kmp kms kmt kmu kn- knc kne kni knk knl knm knn kno knp knr knt knu kob koc koe koi kok kol kom kon koo kop kor kos kot kou kpc kpe kpi kpk kpl kpm kpn kpo kpp kpr kps kpt kpu krc kri krk krl krn kro krp krr krs krt kru ksb ksc kse ksi ksk ksl ksm ksn kso ksp ksr kss kst ksu ktb ktc kte ktk ktl ktm ktn kto ktp ktr kts ktt ktu kub kuc kue kui kuk kul kum kun kup kur kus kut kuu l-p lbb lbc lbe lbi lbk lbl lbm lbo lbp lbr lbs lbt lbu lcb lcc lce lci lck lcl lcm lcn lco lcp lcr lcs lct lcu leb lec lee lei lek lel lem len leo lep ler les let leu lib lic lie lii lik