-er b-u bbb bbe bbg bbi bbn bbr bbu be- beb bee beg bei ben ber beu bgb bge bgg bgi bgn bgr bgu bi- bib bie big bii bin bir biu bnb bne bng bni bnn bnr bnu brb bre brg bri brn brr bru bub bue bug bui bun bur buu ebb ebe ebg ebi ebn ebr ebu eeb eee eeg een eer egb ege egg egi egn egr egu eib eie eig eii ein eir eiu en- enb ene eng eni enn enr enu erb ere erg eri ern err eru eu- eub eue eug eui eun eur gbe gbg gbi gbn gbr gbu ge- geb gee geg gei gen ger geu ggb ggg ggi ggn ggr ggu gib gie gig gii gin gir giu gnb gne gni gnn gnr gnu grb gre grg gri grn grr gru gu- gub gue gug gui gun gur guu ibb ibe ibg ibi ibn ibr ibu ie- iee ieg iei ien ier igb ige igg igi ign igr igu iib iie iii iin iir iiu in- inb ine ing ini inn inr inu ir- irb ire irg iri irn irr iru iu- iub iue iug iui iur n-i nbb nbe nbg nbi nbn nbr nbu ne- neb nee neg nei nen ner neu ngb nge ngg ngi ngn ngu nib nie nig nii nin nir niu nnb nne nng nni nnn nnu nrb nre nrg nri nrn nrr nru nub nue nug nui nun nur nuu rbb rbe rbg rbi rbn rbr rbu re- reb ree reg rei ren rer reu rgb rge rgg rgi rgn rgr rib rie rig rii rin rir rnb rng rni rnn rnr rnu rrb rrg rri rrn rrr rru rub rue rug rui run rur ruu ubb ube ubg ubi ubn ubr ubu ueb uee ueg uei uen uer ugb uge ugg ugi ugn ugr ugu uib uie uig uii uin uir uiu un- unb une ung uni unn unr unu ur- urb ure urg uri urn urr uru uue uug uun uur uuu