a-a a-i a-t aaa aai aao aar aas aat aax ai- aia aii aio air ais ait aix aoa aoi aoo aor aos aot aox ar- ara ari aro arr ars art arx as- asa asi aso asr ass ast asx at- ata ati ato atr ats att atx ax- axa axi axo axr axs axt axx ia- iaa iai iao iar ias iat iia iii iio iir iis iit iix io- ioa ioi ioo ior ios iot ir- ira iri iro irr irs irt irx is- isa isi iso isr iss ist ita iti ito its itt itx ixi o-i oaa oai oao oar oas oat oax oia oii oio oir ois oit oo- ooa ooi ooo oor oos oot oox or- ora ori oro orr ors ort orx os- osa osi oso osr oss ost osx ot- ota oti oto otr ots ott ox- oxa oxi oxo oxt oxx ra- raa rai rao rar ras rat rax ria rii rio rir ris rit rix roa roi roo ror ros rot rox rra rri rrr rrs rrt rsa rsi rso rsr rss rst rsx rta rti rto rtr rts rtt rtx rxr rxs saa sai sao sar sas sat sax sia sii sio sir sis sit six soa soi soo sor sos sot sox sr- sra sri sro srr srs srt srx ss- ssa ssi sso ssr sss sst ssx sta sti sto str sts stt stx sxi sxs sxt t-x taa tai tao tar tas tat tax tia tii tio tir tis tit tix to- toa toi too tor tos tot tox tra tri tro trr trs trt trx tsa tsi tso tsr tss tst tsx tta tti tto ttr tts ttt ttx txi txs txt xaa xar xas xat xia xii xio xis xit xix xoa xoi xoo xor xos xot xox xrt xrx xsa xsi xss xst xti xtr xts xtx xxi xxo xxx