-er -ic -ol c-- ccc cce ccf cci ccl cco ccr cct ccx ce- cec cee cef cei cel ceo cer cet cex cfc cfe cff cfi cfl cfo cfr cft cfx ci- cic cie cif cii cil cio cir cit cix cl- clc cle clf cli cll clo clr clt clx co- coc coe cof coi col coo cor cot cox crc cre crf cri crl cro crr crt crx ctc cte ctf cti ctl cto ctr ctt ctx cxc cxf cxi cxl cxo cxr cxt cxx ec- ecc ece ecf eci ecl eco ecr ect ecx eec eee eef eel eeo eer eet eex ef- efc efe eff efi efl efo efr eft efx eic eie eif eii eil eio eir eit eix elc ele elf eli ell elo elr elt elx eo- eoc eoe eof eoi eol eoo eor eot erc ere erf eri erl ero err ert etc ete etf eti etl eto etr ett etx ex- exc exe exi exl exo exr ext exx fcc fce fcf fci fcl fco fcr fct fcx fec fee fef fei fel feo fer fet fex ffc ffe fff ffi ffl ffo ffr fft ffx fic fie fif fii fil fir fit fix flc fle flf fli fll flo flr flt flx foc foe fof foi fol foo for fot fox frc fre frf fri frl fro frr frt ftc fte ftf fti ftl fto ftr ftt ftx fxe fxi fxr fxt fxx i-f icc ice icf ici icl ico icr ict ie- iec iee ief iei iel ier iet iex ifc ife iff ifi ifl ifo ifr ift ifx iic iie iif iii iil iio iir iit iix il- ilc ile ilf ili ill ilo ilr ilt ilx io- ioc ioe iof ioi iol ioo ior iot ir- irc ire irf iri irl iro irr irt irx itc ite itf iti itl ito itt itx ixc ixe ixi ixl lcc lce lcf lci lcl lco lcr lct lcx lec lee lef lei lel leo ler let lex lfc lfe lff lfi lfl lfo lfr lft lfx lic lie lif lii lil lio lir lit lix llc lle llf lli lll llo llr llt loc loe lof loi lol loo lor lot lox lrc lrf lri lro lrr lrt ltc lte ltf lti ltl lto ltr ltt ltx lxc lxi lxo lxr lxx o-i oc- occ ocf oci ocl oco ocr oct ocx oec oee oef oei oel oeo oer oet oex of- ofc ofe off ofi ofl ofo ofr oft ofx oic oie oif oii oil oio oir oit olc ole olf oli oll olo olt oo- ooc oof ooi ool ooo oor oot oox or- orc ore orf ori orl oro orr ort orx ot- otc ote otf oti otl oto otr ott ox- oxc oxf oxi oxo oxt oxx rcc rce rcf rci rcl rco rcr rct rcx re- rec ree ref rei rel reo rer ret rex rfc rfe rff rfi rfl rfo rfr rft ric rie rif rii ril rio rir rit rix rlc rle rlf rli rll rlo rlr rlt roc roe rof roi rol roo ror rot rox rrc rrf rri rrl rrr rrt rtc rte rtf rti rtl rto rtr rtt rtx rxr t-x tcc tce tcf tci tcl tco tcr tct tcx te- tec tee tef tei tel teo ter tet tex tfc tfe tff tfi tfl tfo tfr tft tfx tic tie tif tii til tio tir tit tix tlc tle tlf tli tll tlo tlr tlt tlx to- toc toe tof toi tol too tor tot tox trc tre trf tri trl tro trr trt trx ttc tte ttf tti ttl tto ttr ttt ttx txe txf txi txl txt xcf xci xcl xcr xcx xee xel xer xet xex xfe xfl xft xfx xic xie xii xio xit xix xlf xli xlr xlt xoc xof xoi xoo xor xot xox xrc xrf xrt xrx xtc xtf xti xtr xtx xxi xxl xxo xxx