-er -th a-a a-t aaa aae aah aao aar aat aax aea aee aeh aeo aer aet aex aha ahe ahh aho ahr aht ahx aoa aoe aoh aoo aor aot aox ar- ara are arh aro arr art arx at- ata ate ath ato atr att atx ax- axa axe axh axo axr axt axx eaa eae eah eao ear eat eax eea eee eeo eer eet eex eha ehe ehh eho ehr eht eo- eoa eoe eoh eoo eor eot era ere erh ero err ert eta ete eth eto etr ett etx ex- exa exe exh exo exr ext exx haa hae hah hao har hat hax he- hea hee heh heo her het hex hha hhe hhh hho hhr hht hoa hoe hoh hoo hor hot hox hr- hra hre hrh hro hrr hrt hta hte hth hto htr htt htx oaa oae oah oao oar oat oax oea oee oeh oeo oer oet oex oha ohe ohh oho ohr oht oo- ooa ooh ooo oor oot oox or- ora ore orh oro orr ort orx ot- ota ote oth oto otr ott ox- oxa oxo oxt oxx ra- raa rae rah rao rar rat rax re- rea ree reh reo rer ret rex rh- rha rhe rhh rho rhr rht roa roe roh roo ror rot rox rra rrh rrr rrt rta rte rto rtr rtt rtx rxr t-x taa tae tah tao tar tat tax te- tea tee teh teo ter tet tex th- tha the thh tho thr tht thx to- toa toe toh too tor tot tox tra tre trh tro trr trt trx tta tte tth tto ttr ttt ttx txe txt xaa xar xat xee xer xet xex xht xoa xoo xor xot xox xrt xrx xtr xtx xxo xxx