-ol b-u bbb bbe bbf bbg bbl bbn bbo bbu be- beb bee bef beg bel ben beo beu bfb bfe bff bfg bfl bfn bfo bfu bgb bge bgf bgg bgl bgn bgo bgu blb ble blf blg bll bln blo blu bnb bne bnf bng bnl bnn bno bnu bob boe bof bog bol bon boo bou bub bue buf bug bul bun buo buu ebb ebe ebf ebg ebl ebn ebo ebu eeb eee eef eeg eel een eeo ef- efb efe eff efg efl efo egb ege egf egg egl egn ego egu elb ele elf elg ell eln elo elu en- enb ene enf eng enl enn eno enu eo- eob eoe eof eog eol eon eoo eou eu- eub eue euf eug eul eun fbb fbe fbf fbg fbl fbn fbo fbu feb fee fef feg fel fen feo feu ffe fff ffg ffl ffn ffo ffu fgb fge fgf fgg fgl fgn flb fle flf flg fll fln flo flu fnb fne fnf fng fnl fnn fnu fob foe fof fog fol fon foo fou fub fue fuf fug ful fun fuo fuu gbe gbf gbg gbl gbn gbo gbu ge- geb gee gef geg gel gen geo geu gfb gfe gff gfl gfo ggb ggg ggn ggo ggu glb gle glf glg gll gln glo glu gnb gne gnf gnl gnn gno gnu gob goe gof gog gol gon goo gou gu- gub gue guf gug gul gun guo guu lbb lbe lbf lbg lbl lbo lbu leb lee lef leg lel len leo leu lfb lfe lff lfg lfl lfn lfo lfu lgb lge lgf lgg lgl lgn lgo lgu llb lle llf llg lll lln llo llu lnb lne lng lnl lnn lno lnu lob loe lof log lol lon loo lou lub lue luf lug lul lun luo luu nbb nbe nbf nbg nbl nbn nbo nbu ne- neb nee nef neg nel nen neo neu nfb nfe nff nfl nfn nfo nfu ngb nge ngf ngg ngl ngn ngo ngu nlb nle nlf nlg nll nln nlo nlu nnb nne nnf nng nnl nnn nno nnu no- nob noe nof nog nol non noo nou nub nue nug nul nun nuo nuu ob- obb obe obf obg obl obn obo obu oeb oee oef oeg oel oen oeo of- ofb ofe off ofg ofl ofn ofo ofu oge ogf ogg ogl ogn ogo olb ole olf olg oll oln olo olu on- onb one onf ong onl onn ono onu oo- oob oof oog ool oon ooo ou- oue ouf oul oun ouo ubb ube ubf ubg ubl ubn ubo ubu ueb uee uef ueg uel uen ufe uff ufg ufl ufn ufo ufu ugb uge ugf ugg ugl ugn ugo ugu ulb ule ulf ulg ull uln ulo ulu un- unb une unf ung unl unn uno unu uob uoe uog uol uon uoo uue uug uun uuu