-al -er a-a aaa aae aaf aag aal aar aax aea aee aef aeg ael aer aex af- afa afe aff afg afl afr afx ag- aga age agf agg agl agr agx al- ala ale alf alg all alr alx ar- ara are arf arg arl arr arx ax- axa axe axl axr axx eaa eae eaf eag eal ear eax eea eee eef eeg eel eer eex ef- efa efe eff efg efl efr efx ega ege egf egg egl egr egx ela ele elf elg ell elr elx era ere erf erg erl err ex- exa exe exl exr exx faa fae faf fag fal far fax fea fee fef feg fel fer fex ffa ffe fff ffg ffl ffr ffx fga fge fgf fgg fgl fgr fla fle flf flg fll flr flx fra fre frf frg frl frr fxe fxg fxr fxx gaa gae gaf gag gal gar ge- gea gee gef geg gel ger gex gfa gfe gff gfl gfr gfx gga ggg ggr gla gle glf glg gll glr glx gra gre grf grg grl grr grx gxa gxf gxl la- laa lae laf lag lal lar lax lea lee lef leg lel ler lex lfa lfe lff lfg lfl lfr lfx lga lge lgf lgg lgl lgr lla lle llf llg lll llr lra lrf lrg lrr lxr lxx ra- raa rae raf rag ral rar rax re- rea ree ref reg rel rer rex rfa rfe rff rfg rfl rfr rga rge rgf rgg rgr rgx rla rle rlf rlg rll rlr rra rrf rrg rrl rrr rxr xaa xaf xag xal xar xee xeg xel xer xex xfa xfe xfl xfx xge xgl xla xlf xlg xlr xrf xrx xxl xxx