-th a-a a-i a-t aaa aah aai aas aat aax aha ahh ahi ahs aht ahx ai- aia aih aii ais ait aix as- asa ash asi ass ast asx at- ata ath ati ats att atx ax- axa axh axi axs axt axx h-i haa hah hai has hat hax hha hhh hhi hhs hht hia hih hii his hit hix hsa hsh hsi hss hst hsx hta hth hti hts htt htx ia- iaa iah iai ias iat iha ihh ihi ihs iht iia iih iii iis iit iix is- isa ish isi iss ist ita ith iti its itt itx ixi saa sah sai sas sat sax sh- sha shh shi shs sht sia sih sii sis sit six ss- ssa ssh ssi sss sst ssx sta sth sti sts stt stx sxi sxs sxt t-x taa tah tai tas tat tax th- tha thh thi ths tht thx tia tih tii tis tit tix tsa tsh tsi tss tst tsx tta tth tti tts ttt ttx txi txs txt xaa xas xat xht xia xii xis xit xix xsa xsi xss xst xti xts xtx xxi xxx