b-u bbb bbd bbf bbg bbi bbl bbn bbu bdb bdd bdf bdg bdi bdl bdu bfb bfd bff bfg bfi bfl bfn bfu bgb bgd bgf bgg bgi bgl bgn bgu bi- bib bid bif big bii bil bin biu blb bld blf blg bli bll bln blu bnb bnd bnf bng bni bnl bnn bnu bub bud buf bug bui bul bun buu dbb dbd dbf dbg dbi dbl dbn dbu ddb ddd ddf ddg ddi ddl ddn ddu dfb dfd dff dfg dfi dfl dfn dfu dgd dgf dgg dgi dgl dgn dgu di- dib did dif dig dii dil din diu dl- dlb dld dlf dlg dli dll dlu dnb dnd dnf dng dni dnl dnn dub dud duf dug dui dul dun fbb fbd fbf fbg fbi fbl fbn fbu fdb fdd fdf fdg fdi fdl fdn fdu ffd fff ffg ffi ffl ffn ffu fgb fgd fgf fgg fgi fgl fgn fib fid fif fig fii fil fin fiu flb fld flf flg fli fll fln flu fnb fnd fnf fng fni fnl fnn fnu fub fud fuf fug fui ful fun fuu g-d gbd gbf gbg gbi gbl gbn gbu gdb gdd gdf gdi gdl gdn gdu gfb gfd gff gfi gfl ggb ggd ggg ggi ggn ggu gib gid gif gig gii gil gin giu glb gld glf glg gli gll gln glu gnb gnd gnf gni gnl gnn gnu gu- gub gud guf gug gui gul gun guu i-d i-f ibb ibd ibf ibg ibi ibl ibn ibu idb idd idf idg idi idl idn idu ifb ifd iff ifg ifi ifl ifn ifu igb igd igf igg igi igl ign igu iib iid iif iii iil iin iiu il- ilb ild ilf ilg ili ill iln ilu in- inb ind inf ing ini inl inn inu iu- iub iud iug iui lbb lbd lbf lbg lbi lbl lbu ldb ldd ldf ldg ldi ldl ldn ldu lfb lfd lff lfg lfi lfl lfn lfu lgb lgd lgf lgg lgi lgl lgn lgu lib lid lif lig lii lil lin liu llb lld llf llg lli lll lln llu lnb lnd lng lni lnl lnn lnu lub lud luf lug lui lul lun luu n-i nbb nbd nbf nbg nbi nbl nbn nbu ndb ndd ndf ndg ndi ndl ndn ndu nfb nfd nff nfi nfl nfn nfu ngb ngd ngf ngg ngi ngl ngn ngu nib nid nif nig nii nil nin niu nlb nld nlf nlg nli nll nln nlu nnb nnf nng nni nnl nnn nnu nub nud nug nui nul nun nuu ubb ubf ubg ubi ubl ubn ubu udb udd udf udg udi udl udn udu ufd uff ufg ufi ufl ufn ufu ugb ugf ugg ugi ugl ugn ugu uib uid uif uig uii uil uin uiu ulb uld ulf ulg uli ull uln ulu un- unb und unf ung uni unl unn unu uug uun uuu