-er -th a-a a-t aaa aae aag aah aar aat aax aea aee aeg aeh aer aet aex ag- aga age agg agh agr agt agx aha ahe ahg ahh ahr aht ahx ar- ara are arg arh arr art arx at- ata ate atg ath atr att atx ax- axa axe axh axr axt axx eaa eae eag eah ear eat eax eea eee eeg eer eet eex ega ege egg egh egr egt egx eha ehe ehg ehh ehr eht era ere erg erh err ert eta ete etg eth etr ett etx ex- exa exe exh exr ext exx gaa gae gag gah gar gat ge- gea gee geg geh ger get gex gga ggg ggh ggr ggt gha ghe ghg ghh ghr ght gra gre grg grh grr grt grx gta gte gtg gth gtr gtt gtx gxa gxt haa hae hag hah har hat hax he- hea hee heg heh her het hex hga hge hgg hgh hgr hgt hha hhe hhg hhh hhr hht hr- hra hre hrg hrh hrr hrt hta hte htg hth htr htt htx ra- raa rae rag rah rar rat rax re- rea ree reg reh rer ret rex rga rge rgg rgh rgr rgt rgx rh- rha rhe rhg rhh rhr rht rra rrg rrh rrr rrt rta rte rtg rtr rtt rtx rxr t-x taa tae tag tah tar tat tax te- tea tee teg teh ter tet tex tga tge tgg tgh tgr tgt th- tha the thg thh thr tht thx tra tre trg trh trr trt trx tta tte ttg tth ttr ttt ttx txe txt xaa xag xar xat xee xeg xer xet xex xge xht xrt xrx xtr xtx xxx