-ol b-u bbb bbe bbf bbl bbn bbo bbu be- beb bee bef bel ben beo beu bfb bfe bff bfl bfn bfo bfu blb ble blf bll bln blo blu bnb bne bnf bnl bnn bno bnu bob boe bof bol bon boo bou bub bue buf bul bun buo buu ebb ebe ebf ebl ebn ebo ebu eeb eee eef eel een eeo ef- efb efe eff efl efo elb ele elf ell eln elo elu en- enb ene enf enl enn eno enu eo- eob eoe eof eol eon eoo eou eu- eub eue euf eul eun fbb fbe fbf fbl fbn fbo fbu feb fee fef fel fen feo feu ffe fff ffl ffn ffo ffu flb fle flf fll fln flo flu fnb fne fnf fnl fnn fnu fob foe fof fol fon foo fou fub fue fuf ful fun fuo fuu lbb lbe lbf lbl lbo lbu leb lee lef lel len leo leu lfb lfe lff lfl lfn lfo lfu llb lle llf lll lln llo llu lnb lne lnl lnn lno lnu lob loe lof lol lon loo lou lub lue luf lul lun luo luu nbb nbe nbf nbl nbn nbo nbu ne- neb nee nef nel nen neo neu nfb nfe nff nfl nfn nfo nfu nlb nle nlf nll nln nlo nlu nnb nne nnf nnl nnn nno nnu no- nob noe nof nol non noo nou nub nue nul nun nuo nuu ob- obb obe obf obl obn obo obu oeb oee oef oel oen oeo of- ofb ofe off ofl ofn ofo ofu olb ole olf oll oln olo olu on- onb one onf onl onn ono onu oo- oob oof ool oon ooo ou- oue ouf oul oun ouo ubb ube ubf ubl ubn ubo ubu ueb uee uef uel uen ufe uff ufl ufn ufo ufu ulb ule ulf ull uln ulo ulu un- unb une unf unl unn uno unu uob uoe uol uon uoo uue uun uuu