-er a-a aaa aae aaf aan aao aar aau aax aea aee aef aen aeo aer aeu aex af- afa afe aff afn afo afr afu afx an- ana ane anf ann ano anr anu anx aoa aoe aof aon aoo aor aou aox ar- ara are arf arn aro arr aru arx au- aua aue auf aun auo aur aux ax- axa axe axn axo axr axx eaa eae eaf ean eao ear eau eax eea eee eef een eeo eer eex ef- efa efe eff efo efr efx en- ena ene enf enn eno enr enu eo- eoa eoe eof eon eoo eor eou era ere erf ern ero err eru eu- eua eue euf eun eur eux ex- exa exe exo exr exu exx faa fae faf fan fao far fau fax fea fee fef fen feo fer feu fex ffa ffe fff ffn ffo ffr ffu ffx fna fne fnf fnn fnr fnu fnx foa foe fof fon foo for fou fox fra fre frf frn fro frr fru fua fue fuf fun fuo fur fuu fux fxe fxr fxu fxx naa nae naf nan nao nar nau nax ne- nea nee nef nen neo ner neu nex nfa nfe nff nfn nfo nfr nfu nna nne nnf nnn nno nnu no- noa noe nof non noo nor nou nox nra nre nrf nrn nro nrr nru nrx nua nue nun nuo nur nuu nux oaa oae oaf oan oao oar oau oax oea oee oef oen oeo oer oex of- ofa ofe off ofn ofo ofr ofu ofx on- ona one onf onn ono onr onu onx oo- ooa oof oon ooo oor oox or- ora ore orf orn oro orr oru orx ou- oua oue ouf oun ouo our ox- oxa oxf oxn oxo oxx ra- raa rae raf ran rao rar rau rax re- rea ree ref ren reo rer reu rex rfa rfe rff rfn rfo rfr rfu rna rnn rno rnr rnu roa roe rof ron roo ror rou rox rra rrf rrn rrr rru rua rue ruf run ruo rur ruu rux rxr ua- uaa uae uaf uan uao uar uau uea uee uef uen uer ufa ufe uff ufn ufo ufr ufu ufx un- una une unf unn uno unr unu unx uoa uoe uon uoo uor uox ur- ura ure urf urn uro urr uru urx uua uue uun uur uuu uxf uxo uxr uxu xaa xaf xan xar xau xee xen xer xeu xex xfa xfe xfn xfx xna xno xnu xoa xof xon xoo xor xox xrf xrx xue xun xxo xxx