a-a a-t a-z aaa aak aan aao aar aat aaz aka akk akn ako akr an- ana ank ann ano anr ant anz aoa aok aon aoo aor aot ar- ara ark arn aro arr art arz at- ata atn ato atr att atz az- aza azn azo azt azz k-t k-z ka- kaa kak kan kao kar kat kaz kkk kkn kkr kkt kn- kna knk knn kno knr knt koa kok kon koo kor kot koz kra krk krn kro krr krt kta ktk ktn kto ktr ktt kzo naa nak nan nao nar nat naz nka nkk nkn nko nkr nkt nna nnk nnn nno nnt nnz no- noa nok non noo nor not noz nra nrk nrn nro nrr nrt nrz nta ntk ntn nto ntr ntt ntz nzo nzz oaa oak oan oao oar oat oka okk oko okr on- ona onk onn ono onr ont oo- ooa ook oon ooo oor oot or- ora ork orn oro orr ort orz ot- ota otk otn oto otr ott otz oza ozo ozt ozz ra- raa rak ran rao rar rat raz rkk rko rkt rkz rna rnn rno rnr rnt rnz roa rok ron roo ror rot roz rra rrk rrn rrr rrt rta rtk rtn rto rtr rtt rtz rza rzo taa tak tan tao tar tat taz tka tkk tko tkr tkt tkz tna tnk tnn tno tnr tnt tnz to- toa tok ton too tor tot toz tra trk trn tro trr trt trz tta ttk ttn tto ttr ttt tza zaa zak zan zao zar zat zaz zka znn zno zo- zoa zok zon zoo zor zot zro zta ztr zzr zzt zzz