-al -er a-a aaa aae aaf aal aar aau aax aea aee aef ael aer aeu aex af- afa afe aff afl afr afu afx al- ala ale alf all alr alu alx ar- ara are arf arl arr aru arx au- aua aue auf aul aur aux ax- axa axe axl axr axx eaa eae eaf eal ear eau eax eea eee eef eel eer eex ef- efa efe eff efl efr efx ela ele elf ell elr elu elx era ere erf erl err eru eu- eua eue euf eul eur eux ex- exa exe exl exr exu exx faa fae faf fal far fau fax fea fee fef fel fer feu fex ffa ffe fff ffl ffr ffu ffx fla fle flf fll flr flu flx fra fre frf frl frr fru fua fue fuf ful fur fuu fux fxe fxr fxu fxx la- laa lae laf lal lar lau lax lea lee lef lel ler leu lex lfa lfe lff lfl lfr lfu lfx lla lle llf lll llr llu lra lrf lrr lru lua lue luf lul lur luu lux lxr lxx ra- raa rae raf ral rar rau rax re- rea ree ref rel rer reu rex rfa rfe rff rfl rfr rfu rla rle rlf rll rlr rlu rra rrf rrl rrr rru rua rue ruf rur ruu rux rxr ua- uaa uae uaf ual uar uau uea uee uef uel uer ufa ufe uff ufl ufr ufu ufx ula ule ulf ull ulr ulu ur- ura ure urf url urr uru urx uua uue uur uuu uxf uxr uxu xaa xaf xal xar xau xee xel xer xeu xex xfa xfe xfl xfx xla xlf xlr xrf xrx xue xul xxl xxx