a-a a-i a-t aaa aaf aag aai aak aan aar aat af- afa aff afg afi afk afn afr aft ag- aga agf agg agi agk agn agr agt ai- aia aif aig aii aik ain air ait aka akg aki akk akn akr an- ana anf ang ani ank ann anr ant ar- ara arf arg ari ark arn arr art at- ata atf atg ati atn atr att faa faf fag fai fak fan far fat ffa fff ffg ffi ffk ffn ffr fft fga fgf fgg fgi fgn fgr fgt fia fif fig fii fik fin fir fit fka fkf fkg fki fkk fkt fna fnf fng fni fnk fnn fnr fnt fra frf frg fri frk frn frr frt fta ftf ftg fti ftk ftn ftr ftt gaa gaf gag gai gak gan gar gat gfa gff gfi gfk gfr gft gga ggg ggi ggn ggr ggt gia gif gig gii gik gin gir git gka gkn gkt gna gnf gni gnn gnr gnt gra grf grg gri grk grn grr grt gta gtf gtg gti gtk gtn gtr gtt i-f ia- iaa iaf iag iai ian iar iat ifa iff ifg ifi ifn ifr ift iga igf igg igi igk ign igr igt iia iif iii iin iir iit ika ikf iki ikk ikr ikt in- ina inf ing ini ink inn inr int ir- ira irf irg iri irk irn irr irt ita itf itg iti itk itn itt k-t ka- kaa kaf kag kai kak kan kar kat kfa kff kfg kfi kga kgf kgi kia kif kig kii kik kin kir kit kki kkk kkn kkr kkt kn- kna knf kng kni knk knn knr knt kra krf krg kri krk krn krr krt kta ktf ktg ktk ktn ktr ktt n-i naa naf nag nai nak nan nar nat nfa nff nfi nfk nfn nfr nft nga ngf ngg ngi ngk ngn ngt nia nif nig nii nik nin nir nit nka nkf nki nkk nkn nkr nkt nna nnf nng nni nnk nnn nnt nra nrf nrg nri nrk nrn nrr nrt nta ntf ntg nti ntk ntn ntr ntt ra- raa raf rag rai rak ran rar rat rfa rff rfg rfi rfk rfn rfr rft rga rgf rgg rgi rgk rgn rgr rgt ria rif rig rii rik rin rir rit rkf rkg rkk rkt rna rng rni rnn rnr rnt rra rrf rrg rri rrk rrn rrr rrt rta rtf rtg rti rtk rtn rtr rtt taa taf tag tai tak tan tar tat tfa tff tfg tfi tfk tfn tfr tft tga tgf tgg tgi tgk tgn tgr tgt tia tif tig tii tik tin tir tit tka tkg tkk tkr tkt tna tnf tng tni tnk tnn tnr tnt tra trf trg tri trk trn trr trt tta ttf ttg tti ttk ttn ttr ttt