-ol fff ffl ffn ffo ffs ffu flf fll fln flo fls flu fnf fnl fnn fns fnu fof fol fon foo fos fou fsf fsl fsn fso fss fsu fuf ful fun fuo fus fuu lff lfl lfn lfo lfs lfu llf lll lln llo lls llu lnl lnn lno lns lnu lof lol lon loo los lou lsf lsl lsn lso lss lsu luf lul lun luo lus luu nff nfl nfn nfo nfs nfu nlf nll nln nlo nls nlu nnf nnl nnn nno nns nnu no- nof nol non noo nos nou nsf nsl nsn nso nss nsu nul nun nuo nus nuu of- off ofl ofn ofo ofs ofu olf oll oln olo ols olu on- onf onl onn ono ons onu oo- oof ool oon ooo oos os- osf osl osn oso oss osu ou- ouf oul oun ouo ous sff sfl sfn sfo sfs sfu slf sll sln slo sls slu snf snl snn sno sns snu sof sol son soo sos sou ss- ssf ssl ssn sso sss ssu suf sul sun suo sus suu uff ufl ufn ufo ufs ufu ulf ull uln ulo uls ulu un- unf unl unn uno uns unu uol uon uoo uos usf usl usn uso uss usu uun uus uuu