-er -ic a-a a-c a-i a-t aaa aac aae aaf aai aan aar aat aax ac- aca acc ace acf aci acn acr act acx aea aec aee aef aei aen aer aet aex af- afa afc afe aff afi afn afr aft afx ai- aia aic aie aif aii ain air ait aix an- ana anc ane anf ani ann anr ant anx ar- ara arc are arf ari arn arr art arx at- ata atc ate atf ati atn atr att atx ax- axa axe axi axn axr axt axx c-- caa cac cae caf cai can car cat cax cca ccc cce ccf cci ccn ccr cct ccx ce- cea cec cee cef cei cen cer cet cex cfa cfc cfe cff cfi cfn cfr cft cfx ci- cia cic cie cif cii cin cir cit cix cn- cna cnc cne cnf cni cnn cnr cnt cnx cra crc cre crf cri crn crr crt crx cta ctc cte ctf cti ctn ctr ctt ctx cxc cxf cxi cxr cxt cxx eaa eac eae eaf eai ean ear eat eax ec- eca ecc ece ecf eci ecn ecr ect ecx eea eec eee eef een eer eet eex ef- efa efc efe eff efi efr eft efx eia eic eie eif eii ein eir eit eix en- ena enc ene enf eni enn enr ent era erc ere erf eri ern err ert eta etc ete etf eti etn etr ett etx ex- exa exc exe exi exr ext exx faa fac fae faf fai fan far fat fax fca fcc fce fcf fci fcn fcr fct fcx fea fec fee fef fei fen fer fet fex ffa ffc ffe fff ffi ffn ffr fft ffx fia fic fie fif fii fin fir fit fix fna fnc fne fnf fni fnn fnr fnt fnx fra frc fre frf fri frn frr frt fta ftc fte ftf fti ftn ftr ftt ftx fxe fxi fxr fxt fxx i-f ia- iaa iac iae iaf iai ian iar iat ica icc ice icf ici icn icr ict ie- iea iec iee ief iei ien ier iet iex ifa ifc ife iff ifi ifn ifr ift ifx iia iic iie iif iii iin iir iit iix in- ina inc ine inf ini inn inr int inx ir- ira irc ire irf iri irn irr irt irx ita itc ite itf iti itn itt itx ixc ixe ixi ixn n-i naa nac nae naf nai nan nar nat nax nca ncc nce ncf nci ncn ncr nct ncx ne- nea nec nee nef nei nen ner net nex nfa nfc nfe nff nfi nfn nfr nft nia nic nie nif nii nin nir nit nix nna nnc nne nnf nni nnn nnt nra nrc nre nrf nri nrn nrr nrt nrx nta ntc nte ntf nti ntn ntr ntt ntx nxc nxt ra- raa rac rae raf rai ran rar rat rax rca rcc rce rcf rci rcn rcr rct rcx re- rea rec ree ref rei ren rer ret rex rfa rfc rfe rff rfi rfn rfr rft ria ric rie rif rii rin rir rit rix rna rnc rni rnn rnr rnt rra rrc rrf rri rrn rrr rrt rta rtc rte rtf rti rtn rtr rtt rtx rxr t-x taa tac tae taf tai tan tar tat tax tca tcc tce tcf tci tcn tcr tct tcx te- tea tec tee tef tei ten ter tet tex tfa tfc tfe tff tfi tfn tfr tft tfx tia tic tie tif tii tin tir tit tix tna tnc tne tnf tni tnn tnr tnt tnx tra trc tre trf tri trn trr trt trx tta ttc tte ttf tti ttn ttr ttt ttx txe txf txi txn txt xaa xac xaf xan xar xat xcf xci xcr xcx xee xen xer xet xex xfa xfe xfn xft xfx xia xic xie xii xin xit xix xna xnc xrc xrf xrt xrx xtc xtf xti xtr xtx xxi xxx