a-a a-i a-t aaa aaf aag aai aak aar aas aat af- afa aff afg afi afk afr afs aft ag- aga agf agg agi agk agr ags agt ai- aia aif aig aii aik air ais ait aka akg aki akk akr aks ar- ara arf arg ari ark arr ars art as- asa asf asg asi ask asr ass ast at- ata atf atg ati atr ats att faa faf fag fai fak far fas fat ffa fff ffg ffi ffk ffr ffs fft fga fgf fgg fgi fgr fgs fgt fia fif fig fii fik fir fis fit fka fkf fkg fki fkk fkt fra frf frg fri frk frr frs frt fsa fsf fsg fsi fsk fsr fss fst fta ftf ftg fti ftk ftr fts ftt gaa gaf gag gai gak gar gas gat gfa gff gfi gfk gfr gfs gft gga ggg ggi ggr ggs ggt gia gif gig gii gik gir gis git gka gks gkt gra grf grg gri grk grr grs grt gsa gsf gsg gsi gsk gsr gss gst gta gtf gtg gti gtk gtr gts gtt i-f ia- iaa iaf iag iai iar ias iat ifa iff ifg ifi ifr ifs ift iga igf igg igi igk igr igs igt iia iif iii iir iis iit ika ikf iki ikk ikr iks ikt ir- ira irf irg iri irk irr irs irt is- isa isf isg isi isk isr iss ist ita itf itg iti itk its itt k-t ka- kaa kaf kag kai kak kar kas kat kfa kff kfg kfi kfs kga kgf kgi kgs kia kif kig kii kik kir kis kit kki kkk kkr kks kkt kra krf krg kri krk krr krs krt ksa ksf ksg ksi ksk ksr kss kst kta ktf ktg ktk ktr kts ktt ra- raa raf rag rai rak rar ras rat rfa rff rfg rfi rfk rfr rfs rft rga rgf rgg rgi rgk rgr rgs rgt ria rif rig rii rik rir ris rit rkf rkg rkk rks rkt rra rrf rrg rri rrk rrr rrs rrt rsa rsf rsg rsi rsk rsr rss rst rta rtf rtg rti rtk rtr rts rtt saa saf sag sai sak sar sas sat sfa sff sfg sfi sfk sfr sfs sft sga sgf sgg sgi sgk sgr sgs sgt sia sif sig sii sik sir sis sit sk- ska skf skg ski skk skr sks skt sr- sra srf srg sri srk srr srs srt ss- ssa ssf ssg ssi ssk ssr sss sst sta stf stg sti stk str sts stt taa taf tag tai tak tar tas tat tfa tff tfg tfi tfk tfr tfs tft tga tgf tgg tgi tgk tgr tgs tgt tia tif tig tii tik tir tis tit tka tkg tkk tkr tks tkt tra trf trg tri trk trr trs trt tsa tsf tsg tsi tsk tsr tss tst tta ttf ttg tti ttk ttr tts ttt