-er -ic -ol b-u bbb bbc bbe bbg bbi bbk bbl bbn bbo bbr bbu bcb bcc bce bcg bci bck bcl bcn bco bcr bcu be- beb bec bee beg bei bek bel ben beo ber beu bgb bgc bge bgg bgi bgk bgl bgn bgo bgr bgu bi- bib bic bie big bii bik bil bin bio bir biu bkb bkc bke bkg bkk bkl bkn bko bkr blb blc ble blg bli blk bll bln blo blr blu bnb bnc bne bng bni bnk bnl bnn bno bnr bnu bob boc boe bog boi bok bol bon boo bor bou brb bre brg bri brk brl brn bro brr bru bub buc bue bug bui buk bul bun buo bur buu c-- cbb cbc cbe cbg cbi cbk cbl cbn cbo cbr cbu ccb ccc cce ccg cci cck ccl ccn cco ccr ccu ce- ceb cec cee ceg cei cek cel cen ceo cer ceu cgb cgc cge cgg cgi cgl cgn cgo cgr cgu ci- cib cic cie cig cii cik cil cin cio cir ciu ckb ckc cki cko cl- clb clc cle clg cli clk cll cln clo clr clu cn- cnb cnc cne cng cni cnl cnn cno cnr cnu co- cob coc coe cog coi cok col con coo cor cou crb crc cre crg cri crk crl crn cro crr cru cub cuc cue cug cui cuk cul cun cuo cur cuu ebb ebc ebe ebg ebi ebk ebl ebn ebo ebr ebu ec- ecb ecc ece ecg eci eck ecl ecn eco ecr ecu eeb eec eee eeg eek eel een eeo eer egb egc ege egg egi egl egn ego egr egu eib eic eie eig eii eik eil ein eio eir eiu ekb ekc eke ekg eki ekl eko ekr eku elb elc ele elg eli elk ell eln elo elr elu en- enb enc ene eng eni enk enl enn eno enr enu eo- eob eoc eoe eog eoi eok eol eon eoo eor eou erb erc ere erg eri erk erl ern ero err eru eu- eub euc eue eug eui eul eun eur gbc gbe gbg gbi gbk gbl gbn gbo gbr gbu gcb gcc gce gcg gci gck gcl gcn gco gcr gcu ge- geb gec gee geg gei gek gel gen geo ger geu ggb ggc ggg ggi ggn ggo ggr ggu gib gic gie gig gii gik gil gin gio gir giu gkb gkn gko glb glc gle glg gli glk gll gln glo glr glu gnb gnc gne gni gnl gnn gno gnr gnu gob goc goe gog goi gok gol gon goo gor gou grb grc gre grg gri grk grl grn gro grr gru gu- gub guc gue gug gui guk gul gun guo gur guu ibb ibc ibe ibg ibi ibk ibl ibn ibo ibr ibu icb icc ice icg ici ick icl icn ico icr icu ie- iec iee ieg iei iek iel ien ier igb igc ige igg igi igk igl ign igo igr igu iib iic iie iii iil iin iio iir iiu ikb ikc ike iki ikk ikl iko ikr iku il- ilb ilc ile ilg ili ilk ill iln ilo ilr ilu in- inb inc ine ing ini ink inl inn ino inr inu io- iob ioc ioe iog ioi iol ion ioo ior iou ir- irb irc ire irg iri irk irl irn iro irr iru iu- iub iuc iue iug iui iur kbb kbc kbe kbi kbk kbl kbn kbo kbr kbu kcb kcc kce kcg kci kck kcl kcn kcr kcu ke- keb kec kee keg kei kek kel ken keo ker kgb kgc kgi kgl kgo kgu kib kic kie kig kii kik kil kin kio kir kiu kkb kkc kke kki kkk kkl kkn kkr kku kl- klb klc klg kli klo klr klu kn- knc kne kng kni knk knl knn kno knr knu kob koc koe kog koi kok kol kon koo kor kou krc krg kri krk krl krn kro krr kru kub kuc kue kug kui kuk kul kun kur kuu lbb lbc lbe lbg lbi lbk lbl lbo lbr lbu lcb lcc lce lcg lci lck lcl lcn lco lcr lcu leb lec lee leg lei lek lel len leo ler leu lgb lgc lge lgg lgi lgk lgl lgn lgo lgr lgu lib lic lie lig lii lik lil lin lio lir liu lkb lkg lkl lkr llb llc lle llg lli llk lll lln llo llr llu lnb lnc lne lng lni lnk lnl lnn lno lnr lnu lob loc loe log loi lok lol lon loo lor lou lrb lrc lrg lri lrk lrn lro lrr lru lub luc lue lug lui luk lul lun luo lur luu n-i nbb nbc nbe nbg nbi nbk nbl nbn nbo nbr nbu ncb ncc nce ncg nci nck ncl ncn nco ncr ncu ne- neb nec nee neg nei nek nel nen neo ner neu ngb ngc nge ngg ngi ngk ngl ngn ngo ngu nib nic nie nig nii nik nil nin nio nir niu nkc nke nki nkk nkn nko nkr nku nlb nlc nle nlg nli nlk nll nln nlo nlr nlu nnb nnc nne nng nni nnk nnl nnn nno nnu no- nob noc noe nog noi nok nol non noo nor nou nrb nrc nre nrg nri nrk nrl nrn nro nrr nru nub nuc nue nug nui nuk nul nun nuo nur nuu o-i ob- obb obc obe obg obi obk obl obn obo obr obu oc- ocb occ ocg oci ock ocl ocn oco ocr ocu oeb oec oee oeg oei oel oen oeo oer ogc oge ogg ogi ogl ogn ogo oib oic oie oii oik oil oin oio oir oiu okb okc oke okg oki okk okl oko okr oku olb olc ole olg oli olk oll oln olo olu on- onb onc one ong oni onk onl onn ono onr onu