-al a-a a-i aaa aaf aag aai aal aar aax af- afa aff afg afi afl afr afx ag- aga agf agg agi agl agr agx ai- aia aif aig aii ail air aix al- ala alf alg ali all alr alx ar- ara arf arg ari arl arr arx ax- axa axi axl axr axx faa faf fag fai fal far fax ffa fff ffg ffi ffl ffr ffx fga fgf fgg fgi fgl fgr fia fif fig fii fil fir fix fla flf flg fli fll flr flx fra frf frg fri frl frr fxg fxi fxr fxx gaa gaf gag gai gal gar gfa gff gfi gfl gfr gfx gga ggg ggi ggr gia gif gig gii gil gir gla glf glg gli gll glr glx gra grf grg gri grl grr grx gxa gxf gxl i-f ia- iaa iaf iag iai ial iar ifa iff ifg ifi ifl ifr ifx iga igf igg igi igl igr iia iif iii iil iir iix il- ila ilf ilg ili ill ilr ilx ir- ira irf irg iri irl irr irx ixi ixl la- laa laf lag lai lal lar lax lfa lff lfg lfi lfl lfr lfx lga lgf lgg lgi lgl lgr lia lif lig lii lil lir lix lla llf llg lli lll llr lra lrf lrg lri lrr lxi lxr lxx ra- raa raf rag rai ral rar rax rfa rff rfg rfi rfl rfr rga rgf rgg rgi rgr rgx ria rif rig rii ril rir rix rla rlf rlg rli rll rlr rra rrf rrg rri rrl rrr rxr xaa xaf xag xal xar xfa xfl xfx xgi xgl xia xii xix xla xlf xlg xli xlr xrf xrx xxi xxl xxx