-al -ol a-a a-i aaa aaf aag aai aak aal aao aar aas af- afa aff afg afi afk afl afo afr afs ag- aga agf agg agi agk agl ago agr ags ai- aia aif aig aii aik ail aio air ais aka akg aki akk akl ako akr aks al- ala alf alg ali alk all alo alr als aoa aof aog aoi aok aol aoo aor aos ar- ara arf arg ari ark arl aro arr ars as- asa asf asg asi ask asl aso asr ass faa faf fag fai fak fal fao far fas ffa fff ffg ffi ffk ffl ffo ffr ffs fga fgf fgg fgi fgl fgr fgs fia fif fig fii fik fil fir fis fka fkf fkg fki fkk fkl fla flf flg fli fll flo flr fls foa fof fog foi fok fol foo for fos fra frf frg fri frk frl fro frr frs fsa fsf fsg fsi fsk fsl fso fsr fss gaa gaf gag gai gak gal gao gar gas gfa gff gfi gfk gfl gfo gfr gfs gga ggg ggi ggo ggr ggs gia gif gig gii gik gil gio gir gis gka gko gks gla glf glg gli glk gll glo glr gls goa gof gog goi gok gol goo gor gos gra grf grg gri grk grl gro grr grs gsa gsf gsg gsi gsk gsl gso gsr gss i-f ia- iaa iaf iag iai ial iao iar ias ifa iff ifg ifi ifl ifo ifr ifs iga igf igg igi igk igl igo igr igs iia iif iii iil iio iir iis ika ikf iki ikk ikl iko ikr iks il- ila ilf ilg ili ilk ill ilo ilr ils io- ioa iof iog ioi iol ioo ior ios ir- ira irf irg iri irk irl iro irr irs is- isa isf isg isi isk isl iso isr iss ka- kaa kaf kag kai kak kal kao kar kas kfa kff kfg kfi kfo kfs kga kgf kgi kgl kgo kgs kia kif kig kii kik kil kio kir kis kki kkk kkl kkr kks kl- kla klf klg kli klo klr kls koa kof kog koi kok kol koo kor kos kra krf krg kri krk krl kro krr krs ksa ksf ksg ksi ksk ksl kso ksr kss la- laa laf lag lai lak lal lao lar las lfa lff lfg lfi lfk lfl lfo lfr lfs lga lgf lgg lgi lgk lgl lgo lgr lgs lia lif lig lii lik lil lio lir lis lka lkg lkl lkr lks lla llf llg lli llk lll llo llr lls loa lof log loi lok lol loo lor los lra lrf lrg lri lrk lro lrr lrs lsa lsf lsg lsi lsk lsl lso lsr lss o-i oaa oaf oag oai oak oal oao oar oas of- ofa off ofg ofi ofl ofo ofr ofs oga ogf ogg ogi ogl ogo ogs oia oif oii oik oil oio oir ois oka okg oki okk okl oko okr oks ola olf olg oli olk oll olo ols oo- ooa oof oog ooi ook ool ooo oor oos or- ora orf org ori ork orl oro orr ors os- osa osf osg osi osk osl oso osr oss ra- raa raf rag rai rak ral rao rar ras rfa rff rfg rfi rfk rfl rfo rfr rfs rga rgf rgg rgi rgk rgo rgr rgs ria rif rig rii rik ril rio rir ris rkf rkg rkk rko rks rla rlf rlg rli rll rlo rlr rls roa rof rog roi rok rol roo ror ros rra rrf rrg rri rrk rrl rrr rrs rsa rsf rsg rsi rsk rsl rso rsr rss saa saf sag sai sak sal sao sar sas sfa sff sfg sfi sfk sfl sfo sfr sfs sga sgf sgg sgi sgk sgl sgo sgr sgs sia sif sig sii sik sil sio sir sis sk- ska skf skg ski skk skl sko skr sks sla slf slg sli slk sll slo slr sls soa sof sog soi sok sol soo sor sos sr- sra srf srg sri srk srl sro srr srs ss- ssa ssf ssg ssi ssk ssl sso ssr sss