-ol fff ffg ffi ffl ffn ffo ffs fft fgf fgg fgi fgl fgn fgs fgt fif fig fii fil fin fis fit flf flg fli fll fln flo fls flt fnf fng fni fnl fnn fns fnt fof fog foi fol fon foo fos fot fsf fsg fsi fsl fsn fso fss fst ftf ftg fti ftl ftn fto fts ftt gff gfi gfl gfo gfs gft ggg ggi ggn ggo ggs ggt gif gig gii gil gin gio gis git glf glg gli gll gln glo gls glt gnf gni gnl gnn gno gns gnt gof gog goi gol gon goo gos got gsf gsg gsi gsl gsn gso gss gst gtf gtg gti gtl gtn gto gts gtt i-f iff ifg ifi ifl ifn ifo ifs ift igf igg igi igl ign igo igs igt iif iii iil iin iio iis iit il- ilf ilg ili ill iln ilo ils ilt in- inf ing ini inl inn ino ins int io- iof iog ioi iol ion ioo ios iot is- isf isg isi isl isn iso iss ist itf itg iti itl itn ito its itt lff lfg lfi lfl lfn lfo lfs lft lgf lgg lgi lgl lgn lgo lgs lgt lif lig lii lil lin lio lis lit llf llg lli lll lln llo lls llt lng lni lnl lnn lno lns lnt lof log loi lol lon loo los lot lsf lsg lsi lsl lsn lso lss lst ltf ltg lti ltl lto lts ltt n-i nff nfi nfl nfn nfo nfs nft ngf ngg ngi ngl ngn ngo ngs ngt nif nig nii nil nin nio nis nit nlf nlg nli nll nln nlo nls nlt nnf nng nni nnl nnn nno nns nnt no- nof nog noi nol non noo nos not nsf nsg nsi nsl nsn nso nss nst ntf ntg nti ntn nto nts ntt o-i of- off ofg ofi ofl ofn ofo ofs oft ogf ogg ogi ogl ogn ogo ogs ogt oif oii oil oin oio ois oit olf olg oli oll oln olo ols olt on- onf ong oni onl onn ono ons ont oo- oof oog ooi ool oon ooo oos oot os- osf osg osi osl osn oso oss ost ot- otf otg oti otl otn oto ots ott sff sfg sfi sfl sfn sfo sfs sft sgf sgg sgi sgl sgn sgo sgs sgt sif sig sii sil sin sio sis sit slf slg sli sll sln slo sls slt snf sng sni snl snn sno sns snt sof sog soi sol son soo sos sot ss- ssf ssg ssi ssl ssn sso sss sst stf stg sti stl stn sto sts stt tff tfg tfi tfl tfn tfo tfs tft tgf tgg tgi tgl tgn tgo tgs tgt tif tig tii til tin tio tis tit tlf tlg tli tll tln tlo tls tlt tnf tng tni tnl tnn tno tns tnt to- tof tog toi tol ton too tos tot tsf tsg tsi tsl tsn tso tss tst ttf ttg tti ttl ttn tto tts ttt