a-a a-t a-z aaa aan aao aar aas aat aaz an- ana ann ano anr ans ant anz aoa aon aoo aor aos aot ar- ara arn aro arr ars art arz as- asa asn aso asr ass ast asz at- ata atn ato atr ats att atz az- aza azn azo azs azt azz naa nan nao nar nas nat naz nna nnn nno nns nnt nnz no- noa non noo nor nos not noz nra nrn nro nrr nrs nrt nrz nsa nsn nso nsr nss nst nsz nta ntn nto ntr nts ntt ntz nzo nzs nzz oaa oan oao oar oas oat on- ona onn ono onr ons ont oo- ooa oon ooo oor oos oot or- ora orn oro orr ors ort orz os- osa osn oso osr oss ost ot- ota otn oto otr ots ott otz oza ozo ozs ozt ozz ra- raa ran rao rar ras rat raz rna rnn rno rnr rns rnt rnz roa ron roo ror ros rot roz rra rrn rrr rrs rrt rsa rsn rso rsr rss rst rta rtn rto rtr rts rtt rtz rza rzo saa san sao sar sas sat saz sna snn sno snr sns snt soa son soo sor sos sot soz sr- sra srn sro srr srs srt ss- ssa ssn sso ssr sss sst ssz sta stn sto str sts stt stz sza szr taa tan tao tar tas tat taz tna tnn tno tnr tns tnt tnz to- toa ton too tor tos tot toz tra trn tro trr trs trt trz tsa tsn tso tsr tss tst tta ttn tto ttr tts ttt tza tzs zaa zan zao zar zas zat zaz znn zno zns zo- zoa zon zoo zor zos zot zro zrs zsa zst zsz zta ztr zzr zzs zzt zzz