-er b-u bbb bbe bbg bbi bbk bbn bbr bbu be- beb bee beg bei bek ben ber beu bev bgb bge bgg bgi bgk bgn bgr bgu bgv bi- bib bie big bii bik bin bir biu biv bkb bke bkg bkk bkn bkr bkv bnb bne bng bni bnk bnn bnr bnu bnv brb bre brg bri brk brn brr bru brv bub bue bug bui buk bun bur buu bvb bve bvg bvi bvk bvn bvr bvu bvv ebb ebe ebg ebi ebk ebn ebr ebu ebv eeb eee eeg eek een eer eev egb ege egg egi egn egr egu eib eie eig eii eik ein eir eiu eiv ekb eke ekg eki ekr eku ekv en- enb ene eng eni enk enn enr enu env erb ere erg eri erk ern err eru erv eu- eub eue eug eui eun eur euv evb eve evg evi evn evr evv gbe gbg gbi gbk gbn gbr gbu gbv ge- geb gee geg gei gek gen ger geu gev ggb ggg ggi ggn ggr ggu ggv gib gie gig gii gik gin gir giu giv gkb gkn gnb gne gni gnn gnr gnu gnv grb gre grg gri grk grn grr gru grv gu- gub gue gug gui guk gun gur guu guv gvb gve gvg gvi gvk gvn gvr gvu i-v ibb ibe ibg ibi ibk ibn ibr ibu ibv ie- iee ieg iei iek ien ier iev igb ige igg igi igk ign igr igu iib iie iii iin iir iiu ikb ike iki ikk ikr iku ikv in- inb ine ing ini ink inn inr inu inv ir- irb ire irg iri irk irn irr iru irv iu- iub iue iug iui iur ivb ive ivg ivi ivr ivu ivv kbb kbe kbi kbk kbn kbr kbu ke- keb kee keg kei kek ken ker kev kgb kgi kgu kgv kib kie kig kii kik kin kir kiu kiv kkb kke kki kkk kkn kkr kku kkv kn- kne kng kni knk knn knr knu krg kri krk krn krr kru krv kub kue kug kui kuk kun kur kuu kvb kvi kvk kvn kvr kvv n-i nbb nbe nbg nbi nbk nbn nbr nbu nbv ne- neb nee neg nei nek nen ner neu nev ngb nge ngg ngi ngk ngn ngu nib nie nig nii nik nin nir niu niv nke nki nkk nkn nkr nku nnb nne nng nni nnk nnn nnu nnv nrb nre nrg nri nrk nrn nrr nru nrv nub nue nug nui nuk nun nur nuu nuv nvb nve nvg nvi nvk nvn nvu nvv rbb rbe rbg rbi rbk rbn rbr rbu re- reb ree reg rei rek ren rer reu rev rgb rge rgg rgi rgk rgn rgr rgv rib rie rig rii rik rin rir riv rkb rke rkg rkk rku rkv rnb rng rni rnn rnr rnu rnv rrb rrg rri rrk rrn rrr rru rub rue rug rui ruk run rur ruu ruv rvb rve rvg rvi rvn rvr rvu rvv ubb ube ubg ubi ubk ubn ubr ubu ubv ueb uee ueg uei uen uer ugb uge ugg ugi ugk ugn ugr ugu uib uie uig uii uin uir uiu ukb uke uki ukk ukn ukr uku un- unb une ung uni unk unn unr unu unv ur- urb ure urg uri urk urn urr uru uue uug uun uur uuu uvb uve uvu uvv v-e vbg vbi vbk vbr vbv veb vee veg vei vek ven ver veu vgg vgn vgr vgu vi- vib vie vig vii vik vin vir viu viv vkb vkg vn- vng vni vnr vnu vnv vrb vre vrg vri vrk vrn vrr vru vue vug vuk vur vuv vvb vvg vvi vvr vvv