-al -ol a-a a-i aaa aaf aag aai aal aan aao aar aas af- afa aff afg afi afl afn afo afr afs ag- aga agf agg agi agl agn ago agr ags ai- aia aif aig aii ail ain aio air ais al- ala alf alg ali all aln alo alr als an- ana anf ang ani anl ann ano anr ans aoa aof aog aoi aol aon aoo aor aos ar- ara arf arg ari arl arn aro arr ars as- asa asf asg asi asl asn aso asr ass faa faf fag fai fal fan fao far fas ffa fff ffg ffi ffl ffn ffo ffr ffs fga fgf fgg fgi fgl fgn fgr fgs fia fif fig fii fil fin fir fis fla flf flg fli fll fln flo flr fls fna fnf fng fni fnl fnn fnr fns foa fof fog foi fol fon foo for fos fra frf frg fri frl frn fro frr frs fsa fsf fsg fsi fsl fsn fso fsr fss gaa gaf gag gai gal gan gao gar gas gfa gff gfi gfl gfo gfr gfs gga ggg ggi ggn ggo ggr ggs gia gif gig gii gil gin gio gir gis gla glf glg gli gll gln glo glr gls gna gnf gni gnl gnn gno gnr gns goa gof gog goi gol gon goo gor gos gra grf grg gri grl grn gro grr grs gsa gsf gsg gsi gsl gsn gso gsr gss i-f ia- iaa iaf iag iai ial ian iao iar ias ifa iff ifg ifi ifl ifn ifo ifr ifs iga igf igg igi igl ign igo igr igs iia iif iii iil iin iio iir iis il- ila ilf ilg ili ill iln ilo ilr ils in- ina inf ing ini inl inn ino inr ins io- ioa iof iog ioi iol ion ioo ior ios ir- ira irf irg iri irl irn iro irr irs is- isa isf isg isi isl isn iso isr iss la- laa laf lag lai lal lan lao lar las lfa lff lfg lfi lfl lfn lfo lfr lfs lga lgf lgg lgi lgl lgn lgo lgr lgs lia lif lig lii lil lin lio lir lis lla llf llg lli lll lln llo llr lls lna lng lni lnl lnn lno lnr lns loa lof log loi lol lon loo lor los lra lrf lrg lri lrn lro lrr lrs lsa lsf lsg lsi lsl lsn lso lsr lss n-i naa naf nag nai nal nan nao nar nas nfa nff nfi nfl nfn nfo nfr nfs nga ngf ngg ngi ngl ngn ngo ngs nia nif nig nii nil nin nio nir nis nla nlf nlg nli nll nln nlo nlr nls nna nnf nng nni nnl nnn nno nns no- noa nof nog noi nol non noo nor nos nra nrf nrg nri nrl nrn nro nrr nrs nsa nsf nsg nsi nsl nsn nso nsr nss o-i oaa oaf oag oai oal oan oao oar oas of- ofa off ofg ofi ofl ofn ofo ofr ofs oga ogf ogg ogi ogl ogn ogo ogs oia oif oii oil oin oio oir ois ola olf olg oli oll oln olo ols on- ona onf ong oni onl onn ono onr ons oo- ooa oof oog ooi ool oon ooo oor oos or- ora orf org ori orl orn oro orr ors os- osa osf osg osi osl osn oso osr oss ra- raa raf rag rai ral ran rao rar ras rfa rff rfg rfi rfl rfn rfo rfr rfs rga rgf rgg rgi rgn rgo rgr rgs ria rif rig rii ril rin rio rir ris rla rlf rlg rli rll rln rlo rlr rls rna rng rni rnn rno rnr rns roa rof rog roi rol ron roo ror ros rra rrf rrg rri rrl rrn rrr rrs rsa rsf rsg rsi rsl rsn rso rsr rss saa saf sag sai sal san sao sar sas sfa sff sfg sfi sfl sfn sfo sfr sfs sga sgf sgg sgi sgl sgn sgo sgr sgs sia sif sig sii sil sin sio sir sis sla slf slg sli sll sln slo slr sls sna snf sng sni snl snn sno snr sns soa sof sog soi sol son soo sor sos sr- sra srf srg sri srl srn sro srr srs ss- ssa ssf ssg ssi ssl ssn sso ssr sss