-er a-a a-i a-t aaa aae aaf aai aam aar aat aax aea aee aef aei aem aer aet aex af- afa afe aff afi afm afr aft afx ai- aia aie aif aii aim air ait aix ama ame amf ami amm amr amt amx ar- ara are arf ari arm arr art arx at- ata ate atf ati atm atr att atx ax- axa axe axi axm axr axt axx eaa eae eaf eai eam ear eat eax eea eee eef eem eer eet eex ef- efa efe eff efi efm efr eft efx eia eie eif eii eim eir eit eix em- ema eme emf emi emm emr emt emx era ere erf eri erm err ert eta ete etf eti etm etr ett etx ex- exa exe exi exr ext exx faa fae faf fai fam far fat fax fea fee fef fei fem fer fet fex ffa ffe fff ffi ffm ffr fft ffx fia fie fif fii fim fir fit fix fma fme fmf fmi fmm fmr fmt fmx fra fre frf fri frm frr frt fta fte ftf fti ftm ftr ftt ftx fxe fxi fxm fxr fxt fxx i-f ia- iaa iae iaf iai iam iar iat ie- iea iee ief iei iem ier iet iex ifa ife iff ifi ifm ifr ift ifx iia iie iif iii iim iir iit iix im- ima ime imf imi imm imt imx ir- ira ire irf iri irm irr irt irx ita ite itf iti itm itt itx ixe ixi m-f m-r maa mae maf mai mam mar mat max mea mee mef mei mem mer met mex mfa mfe mff mfi mfm mfr mft mi- mia mie mif mii mim mir mit mix mma mme mmf mmi mmm mmr mmt mmx mra mre mrf mri mrm mrr mrt mrx mta mte mtf mti mtm mtr mtt mtx mxa mxi mxr ra- raa rae raf rai ram rar rat rax re- rea ree ref rei rem rer ret rex rfa rfe rff rfi rfm rfr rft ria rie rif rii rim rir rit rix rma rme rmf rmi rmm rmr rmt rmx rra rrf rri rrm rrr rrt rta rte rtf rti rtm rtr rtt rtx rxr t-x taa tae taf tai tam tar tat tax te- tea tee tef tei tem ter tet tex tfa tfe tff tfi tfm tfr tft tfx tia tie tif tii tim tir tit tix tma tme tmf tmi tmm tmr tmt tmx tra tre trf tri trm trr trt trx tta tte ttf tti ttm ttr ttt ttx txe txf txi txt xaa xaf xam xar xat xee xem xer xet xex xfa xfe xfm xft xfx xia xie xii xit xix xma xmf xmi xmm xmr xmt xmx xrf xrt xrx xtf xti xtm xtr xtx xxi xxx