-er bbb bbe bbg bbi bbn bbr be- beb bee beg bei ben ber bev bgb bge bgg bgi bgn bgr bgv bi- bib bie big bii bin bir biv bnb bne bng bni bnn bnr bnv brb bre brg bri brn brr brv bvb bve bvg bvi bvn bvr bvv ebb ebe ebg ebi ebn ebr ebv eeb eee eeg een eer eev egb ege egg egi egn egr eib eie eig eii ein eir eiv en- enb ene eng eni enn enr env erb ere erg eri ern err erv evb eve evg evi evn evr evv gbe gbg gbi gbn gbr gbv ge- geb gee geg gei gen ger gev ggb ggg ggi ggn ggr ggv gib gie gig gii gin gir giv gnb gne gni gnn gnr gnv grb gre grg gri grn grr grv gvb gve gvg gvi gvn gvr i-v ibb ibe ibg ibi ibn ibr ibv ie- iee ieg iei ien ier iev igb ige igg igi ign igr iib iie iii iin iir in- inb ine ing ini inn inr inv ir- irb ire irg iri irn irr irv ivb ive ivg ivi ivr ivv n-i nbb nbe nbg nbi nbn nbr nbv ne- neb nee neg nei nen ner nev ngb nge ngg ngi ngn nib nie nig nii nin nir niv nnb nne nng nni nnn nnv nrb nre nrg nri nrn nrr nrv nvb nve nvg nvi nvn nvv rbb rbe rbg rbi rbn rbr re- reb ree reg rei ren rer rev rgb rge rgg rgi rgn rgr rgv rib rie rig rii rin rir riv rnb rng rni rnn rnr rnv rrb rrg rri rrn rrr rvb rve rvg rvi rvn rvr rvv v-e vbg vbi vbr vbv veb vee veg vei ven ver vgg vgn vgr vi- vib vie vig vii vin vir viv vn- vng vni vnr vnv vrb vre vrg vri vrn vrr vvb vvg vvi vvr vvv