-er -ol c-- ccc cce ccf ccl cco ccr cct ccu ccx ce- cec cee cef cel ceo cer cet ceu cex cfc cfe cff cfl cfo cfr cft cfu cfx cl- clc cle clf cll clo clr clt clu clx co- coc coe cof col coo cor cot cou cox crc cre crf crl cro crr crt cru crx ctc cte ctf ctl cto ctr ctt ctu ctx cuc cue cuf cul cuo cur cut cuu cxc cxf cxl cxo cxr cxt cxx ec- ecc ece ecf ecl eco ecr ect ecu ecx eec eee eef eel eeo eer eet eex ef- efc efe eff efl efo efr eft efx elc ele elf ell elo elr elt elu elx eo- eoc eoe eof eol eoo eor eot eou erc ere erf erl ero err ert eru etc ete etf etl eto etr ett etu etx eu- euc eue euf eul eur eut eux ex- exc exe exl exo exr ext exu exx fcc fce fcf fcl fco fcr fct fcu fcx fec fee fef fel feo fer fet feu fex ffc ffe fff ffl ffo ffr fft ffu ffx flc fle flf fll flo flr flt flu flx foc foe fof fol foo for fot fou fox frc fre frf frl fro frr frt fru ftc fte ftf ftl fto ftr ftt ftu ftx fue fuf ful fuo fur fut fuu fux fxe fxr fxt fxu fxx lcc lce lcf lcl lco lcr lct lcu lcx lec lee lef lel leo ler let leu lex lfc lfe lff lfl lfo lfr lft lfu lfx llc lle llf lll llo llr llt llu loc loe lof lol loo lor lot lou lox lrc lrf lro lrr lrt lru ltc lte ltf ltl lto ltr ltt ltu ltx luc lue luf lul luo lur lut luu lux lxc lxo lxr lxx oc- occ ocf ocl oco ocr oct ocu ocx oec oee oef oel oeo oer oet oex of- ofc ofe off ofl ofo ofr oft ofu ofx olc ole olf oll olo olt olu oo- ooc oof ool ooo oor oot oox or- orc ore orf orl oro orr ort oru orx ot- otc ote otf otl oto otr ott otu ou- ouc oue ouf oul ouo our out ox- oxc oxf oxo oxt oxx rcc rce rcf rcl rco rcr rct rcu rcx re- rec ree ref rel reo rer ret reu rex rfc rfe rff rfl rfo rfr rft rfu rlc rle rlf rll rlo rlr rlt rlu roc roe rof rol roo ror rot rou rox rrc rrf rrl rrr rrt rru rtc rte rtf rtl rto rtr rtt rtu rtx ruc rue ruf ruo rur rut ruu rux rxr t-x tcc tce tcf tcl tco tcr tct tcu tcx te- tec tee tef tel teo ter tet teu tex tfc tfe tff tfl tfo tfr tft tfu tfx tlc tle tlf tll tlo tlr tlt tlu tlx to- toc toe tof tol too tor tot tou tox trc tre trf trl tro trr trt tru trx ttc tte ttf ttl tto ttr ttt ttu ttx tuc tue tuf tul tuo tur tut tuu tux txe txf txl txt txu ucc uce ucf ucl uco ucr uct ucu uec uee uef uel uer uet ufc ufe uff ufl ufo ufr uft ufu ufx ulc ule ulf ull ulo ulr ult ulu uoc uoe uol uoo uor uot uox ur- urc ure urf url uro urr urt uru urx utc ute utf utl uto utr utt utu utx uuc uue uur uut uuu uxc uxf uxo uxr uxt uxu xcf xcl xcr xcx xee xel xer xet xeu xex xfe xfl xft xfx xlf xlr xlt xoc xof xoo xor xot xox xrc xrf xrt xrx xtc xtf xtr xtx xue xul xxl xxo xxx