-al -er a-a a-b a-i aaa aab aad aae aaf aai aal aar aax ab- aba abb abd abe abf abi abl abr abx ad- ada adb add ade adf adi adl adr adx aea aeb aed aee aef aei ael aer aex af- afa afb afd afe aff afi afl afr afx ai- aia aib aid aie aif aii ail air aix al- ala alb ald ale alf ali all alr alx ar- ara arb ard are arf ari arl arr arx ax- axa axe axi axl axr axx baa bab bad bae baf bai bal bar bax bba bbb bbd bbe bbf bbi bbl bbr bbx bda bdb bdd bde bdf bdi bdl bdr bdx be- bea beb bed bee bef bei bel ber bex bfa bfb bfd bfe bff bfi bfl bfr bfx bi- bia bib bid bie bif bii bil bir bix bla blb bld ble blf bli bll blr blx bra brb brd bre brf bri brl brr brx bxb bxd bxi bxl bxx daa dab dad dae daf dai dal dar dax dba dbb dbd dbe dbf dbi dbl dbr dbx dda ddb ddd dde ddf ddi ddl ddr ddx de- dea deb ded dee def dei del der dex dfa dfb dfd dfe dff dfi dfl dfr dfx di- dia dib did die dif dii dil dir dix dl- dla dlb dld dle dlf dli dll dlr dlx dra drb drd dre dri drl drr drx dxd dxi dxl dxr dxx eaa eab ead eae eaf eai eal ear eax eba ebb ebd ebe ebf ebi ebl ebr ebx ed- eda edb edd ede edf edi edl edr edx eea eeb eed eee eef eel eer eex ef- efa efb efd efe eff efi efl efr efx eia eib eid eie eif eii eil eir eix ela elb eld ele elf eli ell elr elx era erb erd ere erf eri erl err ex- exa exd exe exi exl exr exx faa fab fad fae faf fai fal far fax fba fbb fbd fbe fbf fbi fbl fbr fbx fda fdb fdd fde fdf fdi fdl fdr fdx fea feb fed fee fef fei fel fer fex ffa ffd ffe fff ffi ffl ffr ffx fia fib fid fie fif fii fil fir fix fla flb fld fle flf fli fll flr flx fra frb frd fre frf fri frl frr fxe fxi fxr fxx i-d i-f ia- iaa iab iad iae iaf iai ial iar iba ibb ibd ibe ibf ibi ibl ibr ibx ida idb idd ide idf idi idl idr idx ie- iea ied iee ief iei iel ier iex ifa ifb ifd ife iff ifi ifl ifr ifx iia iib iid iie iif iii iil iir iix il- ila ilb ild ile ilf ili ill ilr ilx ir- ira irb ird ire irf iri irl irr irx ixe ixi ixl la- laa lab lad lae laf lai lal lar lax lba lbb lbd lbe lbf lbi lbl lbr lbx lda ldb ldd lde ldf ldi ldl ldr lea leb led lee lef lei lel ler lex lfa lfb lfd lfe lff lfi lfl lfr lfx lia lib lid lie lif lii lil lir lix lla llb lld lle llf lli lll llr lra lrb lrd lrf lri lrr lxd lxi lxr lxx ra- raa rab rad rae raf rai ral rar rax rba rbb rbd rbe rbf rbi rbl rbr rbx rda rdb rdd rde rdf rdi rdl rdr rdx re- rea reb red ree ref rei rel rer rex rfa rfb rfd rfe rff rfi rfl rfr ria rib rid rie rif rii ril rir rix rla rld rle rlf rli rll rlr rra rrb rrd rrf rri rrl rrr rxr xaa xad xaf xal xar xbe xbl xbr xbx xda xdb xde xdf xdi xdr xed xee xel xer xex xfa xfe xfl xfx xia xie xii xix xla xlb xld xlf xli xlr xrd xrf xrx xxi xxl xxx