-er a-a aaa aae aah aao aar aas aax aea aee aeh aeo aer aes aex aha ahe ahh aho ahr ahs ahx aoa aoe aoh aoo aor aos aox ar- ara are arh aro arr ars arx as- asa ase ash aso asr ass asx ax- axa axe axh axo axr axs axx eaa eae eah eao ear eas eax eea eee eeo eer ees eex eha ehe ehh eho ehr ehs eo- eoa eoe eoh eoo eor eos era ere erh ero err ers es- esa ese esh eso esr ess esx ex- exa exe exh exo exr exs exx haa hae hah hao har has hax he- hea hee heh heo her hes hex hha hhe hhh hho hhr hhs hoa hoe hoh hoo hor hos hox hr- hra hre hrh hro hrr hrs hsa hse hsh hsr hss hsx oaa oae oah oao oar oas oax oea oee oeh oeo oer oes oex oha ohe ohh oho ohr ohs oo- ooa ooh ooo oor oos oox or- ora ore orh oro orr ors orx os- osa ose osh oso osr oss osx ox- oxa oxo oxx ra- raa rae rah rao rar ras rax re- rea ree reh reo rer res rex rh- rha rhe rhh rho rhr rhs roa roe roh roo ror ros rox rra rrh rrr rrs rsa rse rsh rso rsr rss rsx rxr rxs saa sae sah sao sar sas sax se- sea see seh seo ser ses sex sh- sha she shh sho shr shs soa soe soh soo sor sos sox sr- sra sre srh sro srr srs srx ss- ssa sse ssh sso ssr sss ssx sxs xaa xar xas xee xer xes xex xoa xoo xor xos xox xrx xsa xss xxo xxx