-al -ol a-a a-i aaa aaf aag aai aak aal aan aao aar aas af- afa aff afg afi afk afl afn afo afr afs ag- aga agf agg agi agk agl agn ago agr ags ai- aia aif aig aii aik ail ain aio air ais aka akg aki akk akl akn ako akr aks al- ala alf alg ali alk all aln alo alr als an- ana anf ang ani ank anl ann ano anr ans aoa aof aog aoi aok aol aon aoo aor aos ar- ara arf arg ari ark arl arn aro arr ars as- asa asf asg asi ask asl asn aso asr ass faa faf fag fai fak fal fan fao far fas ffa fff ffg ffi ffk ffl ffn ffo ffr ffs fga fgf fgg fgi fgl fgn fgr fgs fia fif fig fii fik fil fin fir fis fka fkf fkg fki fkk fkl fla flf flg fli fll fln flo flr fls fna fnf fng fni fnk fnl fnn fnr fns foa fof fog foi fok fol fon foo for fos fra frf frg fri frk frl frn fro frr frs fsa fsf fsg fsi fsk fsl fsn fso fsr fss gaa gaf gag gai gak gal gan gao gar gas gfa gff gfi gfk gfl gfo gfr gfs gga ggg ggi ggn ggo ggr ggs gia gif gig gii gik gil gin gio gir gis gka gkn gko gks gla glf glg gli glk gll gln glo glr gls gna gnf gni gnl gnn gno gnr gns goa gof gog goi gok gol gon goo gor gos gra grf grg gri grk grl grn gro grr grs gsa gsf gsg gsi gsk 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 igk igl ign igo igr igs iia iif iii iil iin iio iir iis ika ikf iki ikk ikl iko ikr iks il- ila ilf ilg ili ilk ill iln ilo ilr ils in- ina inf ing ini ink inl inn ino inr ins io- ioa iof iog ioi iol ion ioo ior ios ir- ira irf irg iri irk irl irn iro irr irs is- isa isf isg isi isk isl isn iso isr iss ka- kaa kaf kag kai kak kal kan kao kar kas kfa kff kfg kfi kfo kfs kga kgf kgi kgl kgo kgs kia kif kig kii kik kil kin kio kir kis kki kkk kkl kkn kkr kks kl- kla klf klg kli klo klr kls kn- kna knf kng kni knk knl knn kno knr koa kof kog koi kok kol kon koo kor kos kra krf krg kri krk krl krn kro krr krs ksa ksf ksg ksi ksk ksl ksn kso ksr kss la- laa laf lag lai lak lal lan lao lar las lfa lff lfg lfi lfk lfl lfn lfo lfr lfs lga lgf lgg lgi lgk lgl lgn lgo lgr lgs lia lif lig lii lik lil lin lio lir lis lka lkg lkl lkr lks lla llf llg lli llk lll lln llo llr lls lna lng lni lnk lnl lnn lno lnr lns loa lof log loi lok lol lon loo lor los lra lrf lrg lri lrk lrn lro lrr lrs lsa lsf lsg lsi lsk lsl lsn lso lsr lss n-i naa naf nag nai nak nal nan nao nar nas nfa nff nfi nfk nfl nfn nfo nfr nfs nga ngf ngg ngi ngk ngl ngn ngo ngs nia nif nig nii nik nil nin nio nir nis nka nkf nki nkk nkn nko nkr nks nla nlf nlg nli nlk nll nln nlo nlr nls nna nnf nng nni nnk nnl nnn nno nns no- noa nof nog noi nok nol non noo nor nos nra nrf nrg nri nrk nrl nrn nro nrr nrs nsa nsf nsg nsi nsk nsl nsn nso nsr nss o-i oaa oaf oag oai oak 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 oik oil oin oio oir ois oka okg oki okk okl oko okr oks ola olf olg oli olk oll oln olo ols on- ona onf ong oni onk onl onn ono onr ons oo- ooa oof oog ooi ook ool oon ooo oor oos or- ora orf org ori ork orl orn oro orr ors os- osa osf osg osi osk osl osn oso osr oss ra- raa raf rag rai rak ral ran rao rar ras rfa rff rfg rfi rfk rfl rfn rfo rfr rfs rga rgf rgg rgi rgk rgn rgo rgr rgs ria rif rig rii rik ril rin rio rir ris rkf rkg rkk rko rks rla rlf rlg rli rll rln rlo rlr rls rna rng rni rnn rno rnr rns roa rof rog roi rok rol ron roo ror ros rra rrf rrg rri rrk rrl rrn rrr rrs rsa rsf rsg rsi rsk rsl rsn rso rsr rss saa saf sag sai sak sal san sao sar sas sfa sff sfg sfi sfk sfl sfn sfo sfr sfs sga sgf sgg sgi sgk sgl sgn sgo sgr sgs sia sif sig sii sik sil sin sio sir sis sk- ska skf skg ski skk skl sko skr sks sla slf slg sli slk sll sln slo slr sls sna snf sng sni snk snl snn sno snr sns soa sof sog soi sok sol son soo sor sos sr- sra srf srg sri srk srl srn sro srr srs ss- ssa ssf ssg ssi ssk ssl ssn sso ssr sss