-ol fff ffg ffl ffn ffo ffr ffs fgf fgg fgl fgn fgr fgs flf flg fll fln flo flr fls fnf fng fnl fnn fnr fns fof fog fol fon foo for fos frf frg frl frn fro frr frs fsf fsg fsl fsn fso fsr fss gff gfl gfo gfr gfs ggg ggn ggo ggr ggs glf glg gll gln glo glr gls gnf gnl gnn gno gnr gns gof gog gol gon goo gor gos grf grg grl grn gro grr grs gsf gsg gsl gsn gso gsr gss lff lfg lfl lfn lfo lfr lfs lgf lgg lgl lgn lgo lgr lgs llf llg lll lln llo llr lls lng lnl lnn lno lnr lns lof log lol lon loo lor los lrf lrg lrn lro lrr lrs lsf lsg lsl lsn lso lsr lss nff nfl nfn nfo nfr nfs ngf ngg ngl ngn ngo ngs nlf nlg nll nln nlo nlr nls nnf nng nnl nnn nno nns no- nof nog nol non noo nor nos nrf nrg nrl nrn nro nrr nrs nsf nsg nsl nsn nso nsr nss of- off ofg ofl ofn ofo ofr ofs ogf ogg ogl ogn ogo ogs olf olg oll oln olo ols on- onf ong onl onn ono onr ons oo- oof oog ool oon ooo oor oos or- orf org orl orn oro orr ors os- osf osg osl osn oso osr oss rff rfg rfl rfn rfo rfr rfs rgf rgg rgn rgo rgr rgs rlf rlg rll rln rlo rlr rls rng rnn rno rnr rns rof rog rol ron roo ror ros rrf rrg rrl rrn rrr rrs rsf rsg rsl rsn rso rsr rss sff sfg sfl sfn sfo sfr sfs sgf sgg sgl sgn sgo sgr sgs slf slg sll sln slo slr sls snf sng snl snn sno snr sns sof sog sol son soo sor sos sr- srf srg srl srn sro srr srs ss- ssf ssg ssl ssn sso ssr sss