-er b-u bbb bbe bbi bbk bbm bbn bbr bbt bbu be- beb bee bei bek bem ben ber bet beu bi- bib bie bii bik bim bin bir bit biu bkb bke bkk bkm bkn bkr bkt bmb bme bmi bmk bmm bmn bmr bmt bmu bnb bne bni bnk bnn bnr bnt bnu brb bre bri brk brm brn brr brt bru btb bte bti btk btm btn btr btt btu bub bue bui buk bum bun bur but buu ebb ebe ebi ebk ebm ebn ebr ebt ebu eeb eee eek eem een eer eet eib eie eii eik eim ein eir eit eiu ekb eke eki ekr ekt eku em- emb eme emi emk emm emn emr emt emu en- enb ene eni enk enm enn enr ent enu erb ere eri erk erm ern err ert eru etb ete eti etk etm etn etr ett etu eu- eub eue eui eun eur eut ibb ibe ibi ibk ibm ibn ibr ibt ibu ie- iee iei iek iem ien ier iet iib iie iii iim iin iir iit iiu ikb ike iki ikk ikr ikt iku im- imb ime imi imm imn imt imu in- inb ine ini ink inm inn inr int inu ir- irb ire iri irk irm irn irr irt iru itb ite iti itk itm itn itt itu iu- iub iue iui ium iur iut k-t kbb kbe kbi kbk kbm kbn kbr kbu ke- keb kee kei kek kem ken ker ket kib kie kii kik kim kin kir kit kiu kkb kke kki kkk kkm kkn kkr kkt kku kmb kme kmi kmk kmm kmt kmu kn- kne kni knk knm knn knr knt knu kri krk krn krr krt kru ktb kte ktk ktm ktn ktr ktt ktu kub kue kui kuk kum kun kur kut kuu m-r mbb mbe mbi mbk mbm mbr mbt mbu meb mee mei mek mem men mer met meu mi- mib mie mii mik mim min mir mit miu mkb mke mkk mkm mkn mkr mkt mku mmb mme mmi mmk mmm mmn mmr mmt mmu mnb mne mni mnk mnm mnn mnr mnt mnu mrb mre mri mrk mrm mrn mrr mrt mru mtb mte mti mtk mtm mtn mtr mtt mtu mub mue mui muk mum mun mur mut muu n-i nbb nbe nbi nbk nbm nbn nbr nbt nbu ne- neb nee nei nek nem nen ner net neu nib nie nii nik nim nin nir nit niu nke nki nkk nkm nkn nkr nkt nku nmb nme nmi nmk nmm nmn nmr nmt nmu nnb nne nni nnk nnm nnn nnt nnu nrb nre nri nrk nrm nrn nrr nrt nru ntb nte nti ntk ntm ntn ntr ntt ntu nub nue nui nuk num nun nur nut nuu rbb rbe rbi rbk rbm rbn rbr rbt rbu re- reb ree rei rek rem ren rer ret reu rib rie rii rik rim rin rir rit rkb rke rkk rkm rkt rku rmb rme rmi rmm rmn rmr rmt rnb rni rnm rnn rnr rnt rnu rrb rri rrk rrm rrn rrr rrt rru rtb rte rti rtk rtm rtn rtr rtt rtu rub rue rui ruk rum run rur rut ruu tbb tbe tbi tbk tbm tbn tbr tbt tbu te- teb tee tei tek tem ten ter tet teu tib tie tii tik tim tin tir tit tiu tkb tke tkk tkm tkr tkt tmb tme tmi tmk tmm tmn tmr tmt tmu tnb tne tni tnk tnm tnn tnr tnt trb tre tri trk trm trn trr trt tru ttb tte tti ttk ttm ttn ttr ttt ttu tub tue tui tuk tum tun tur tut tuu ubb ube ubi ubk ubn ubr ubt ubu ueb uee uei uem uen uer uet uib uie uii uim uin uir uit uiu ukb uke uki ukk ukn ukr uku um- umb ume umi umm umn umr umt umu un- unb une uni unk unm unn unr unt unu ur- urb ure uri urk urm urn urr urt uru utb ute uti utk utm utn utr utt utu uue uum uun uur uut uuu