a-a a-t aaa aaf aak aan aao aar aat af- afa aff afk afn afo afr aft aka akk akn ako akr an- ana anf ank ann ano anr ant aoa aof aok aon aoo aor aot ar- ara arf ark arn aro arr art at- ata atf atn ato atr att faa faf fak fan fao far fat ffa fff ffk ffn ffo ffr fft fka fkf fkk fkt fna fnf fnk fnn fnr fnt foa fof fok fon foo for fot fra frf frk frn fro frr frt fta ftf ftk ftn fto ftr ftt k-t ka- kaa kaf kak kan kao kar kat kfa kff kfo kkk kkn kkr kkt kn- kna knf knk knn kno knr knt koa kof kok kon koo kor kot kra krf krk krn kro krr krt kta ktf ktk ktn kto ktr ktt naa naf nak nan nao nar nat nfa nff nfk nfn nfo nfr nft nka nkf nkk nkn nko nkr nkt nna nnf nnk nnn nno nnt no- noa nof nok non noo nor not nra nrf nrk nrn nro nrr nrt nta ntf ntk ntn nto ntr ntt oaa oaf oak oan oao oar oat of- ofa off ofn ofo ofr oft oka okk oko okr on- ona onf onk onn ono onr ont oo- ooa oof ook oon ooo oor oot or- ora orf ork orn oro orr ort ot- ota otf otk otn oto otr ott ra- raa raf rak ran rao rar rat rfa rff rfk rfn rfo rfr rft rkf rkk rko rkt rna rnn rno rnr rnt roa rof rok ron roo ror rot rra rrf rrk rrn rrr rrt rta rtf rtk rtn rto rtr rtt taa taf tak tan tao tar tat tfa tff tfk tfn tfo tfr tft tka tkk tko tkr tkt tna tnf tnk tnn tno tnr tnt to- toa tof tok ton too tor tot tra trf trk trn tro trr trt tta ttf ttk ttn tto ttr ttt