a-a a-i a-t aaa aai aak aao aar aas aat aax ai- aia aii aik aio air ais ait aix aka aki akk ako akr aks aoa aoi aok aoo aor aos aot aox ar- ara ari ark aro arr ars art arx as- asa asi ask aso asr ass ast asx at- ata ati ato atr ats att atx ax- axa axi axk axo axr axs axt axx ia- iaa iai iao iar ias iat iia iii iio iir iis iit iix ika iki ikk iko ikr iks ikt ikx io- ioa ioi ioo ior ios iot ir- ira iri irk iro irr irs irt irx is- isa isi isk iso isr iss ist ita iti itk ito its itt itx ixi k-t ka- kaa kai kak kao kar kas kat kax kia kii kik kio kir kis kit kix kki kkk kkr kks kkt koa koi kok koo kor kos kot kra kri krk kro krr krs krt ksa ksi ksk kso ksr kss kst kta ktk kto ktr kts ktt kxo o-i oaa oai oak oao oar oas oat oax oia oii oik oio oir ois oit oka oki okk oko okr oks oo- ooa ooi ook ooo oor oos oot oox or- ora ori ork oro orr ors ort orx os- osa osi osk oso osr oss ost osx ot- ota oti otk oto otr ots ott ox- oxa oxi oxo oxt oxx ra- raa rai rak rao rar ras rat rax ria rii rik rio rir ris rit rix rkk rko rks rkt roa roi rok roo ror ros rot rox rra rri rrk rrr rrs rrt rsa rsi rsk rso rsr rss rst rsx rta rti rtk rto rtr rts rtt rtx rxr rxs saa sai sak sao sar sas sat sax sia sii sik sio sir sis sit six sk- ska ski skk sko skr sks skt skx soa soi sok soo sor sos sot sox sr- sra sri srk sro srr srs srt srx ss- ssa ssi ssk sso ssr sss sst ssx sta sti stk sto str sts stt stx sxi sxs sxt t-x taa tai tak tao tar tas tat tax tia tii tik tio tir tis tit tix tka tkk tko tkr tks tkt to- toa toi tok too tor tos tot tox tra tri trk tro trr trs trt trx tsa tsi tsk tso tsr tss tst tsx tta tti ttk tto ttr tts ttt ttx txi txk txs txt xaa xak xar xas xat xia xii xio xis xit xix xks xoa xoi xok xoo xor xos xot xox xrt xrx xsa xsi xss xst xti xtr xts xtx xxi xxo xxx