-th a-a a-t aaa aah aan aar aat aax aha ahh ahn ahr aht ahx an- ana anh ann anr ant anx ar- ara arh arn arr art arx at- ata ath atn atr att atx ax- axa axh axn axr axt axx haa hah han har hat hax hha hhh hhn hhr hht hna hnh hnn hnt hr- hra hrh hrn hrr hrt hta hth htn htr htt htx naa nah nan nar nat nax nha nhh nhn nhr nht nna nnh nnn nnt nra nrn nrr nrt nrx nta nth ntn ntr ntt ntx nxt ra- raa rah ran rar rat rax rh- rha rhh rhn rhr rht rna rnh rnn rnr rnt rra rrh rrn rrr rrt rta rtn rtr rtt rtx rxr t-x taa tah tan tar tat tax th- tha thh thn thr tht thx tna tnh tnn tnr tnt tnx tra trh trn trr trt trx tta tth ttn ttr ttt ttx txn txt xaa xan xar xat xht xna xrt xrx xtr xtx xxx