-er a-a aaa aae aam aao aar aas aau aax aea aee aem aeo aer aes aeu aex ama ame amm amo amr ams amu amx aoa aoe aom aoo aor aos aou aox ar- ara are arm aro arr ars aru arx as- asa ase asm aso asr ass asu asx au- aua aue aum auo aur aus aux ax- axa axe axm axo axr axs axx eaa eae eam eao ear eas eau eax eea eee eem eeo eer ees eex em- ema eme emm emo emr ems emu emx eo- eoa eoe eom eoo eor eos eou era ere erm ero err ers eru es- esa ese esm eso esr ess esu esx eu- eua eue eur eus eux ex- exa exe exo exr exs exu exx m-o m-r maa mae mam mao mar mas mau max mea mee mem meo mer mes meu mex mma mme mmm mmo mmr mms mmu mmx moa moe mom moo mor mos mou mox mra mre mrm mro mrr mrs mru mrx msa mse msm mso msr mss msu msx mua mue mum mur mus muu mux mxa mxr mxs mxu oaa oae oam oao oar oas oau oax oea oee oem oeo oer oes oex om- oma ome omm omo omr oms omu omx oo- ooa oom ooo oor oos oox or- ora ore orm oro orr ors oru orx os- osa ose osm oso osr oss osu osx ou- oua oue oum ouo our ous ox- oxa oxo oxx ra- raa rae ram rao rar ras rau rax re- rea ree rem reo rer res reu rex rma rme rmm rmo rmr rms rmx roa roe rom roo ror ros rou rox rra rrm rrr rrs rru rsa rse rsm rso rsr rss rsu rsx rua rue rum ruo rur rus ruu rux rxr rxs saa sae sam sao sar sas sau sax se- sea see sem seo ser ses seu sex sma sme smm smo smr sms smu smx soa soe som soo sor sos sou sox sr- sra sre srm sro srr srs srx ss- ssa sse ssm sso ssr sss ssu ssx sua sue sum suo sur sus suu sux sxm sxs sxu ua- uaa uae uam uao uar uas uau uea uee uem uer ues um- uma ume umm umo umr ums umu uoa uoe uom uoo uor uos uox ur- ura ure urm uro urr urs uru urx usa use usm uso usr uss usu usx uua uue uum uur uus uuu uxo uxr uxu xaa xam xar xas xau xee xem xer xes xeu xex xma xmm xmo xmr xms xmu xmx xoa xom xoo xor xos xox xrx xsa xsm xss xue xus xxo xxx