-er -ol c-- ccc ccd cce ccg ccl cco ccr ccs cct cdc cdd cde cdg cdl cdo cdr cds cdt ce- cec ced cee ceg cel ceo cer ces cet cgc cgd cge cgg cgl cgo cgr cgs cgt cl- clc cld cle clg cll clo clr cls clt co- coc cod coe cog col coo cor cos cot crc crd cre crg crl cro crr crs crt csc csd cse csg csl cso csr css cst ctc ctd cte ctg ctl cto ctr cts ctt dcc dcd dce dcg dcl dco dcr dcs dct ddc ddd dde ddg ddl ddo ddr dds ddt de- dec ded dee deg del deo der des det dgc dgd dge dgg dgl dgr dgs dgt dl- dlc dld dle dlg dll dlo dlr dls dlt doc dod doe dog dol doo dor dos dot drc drd dre drg drl dro drr drs drt dsc dsd dse dsg dsl dso dsr dss dst dtc dtd dte dtg dtl dto dtr dts dtt ec- ecc ecd ece ecg ecl eco ecr ecs ect ed- edc edd ede edg edl edo edr eds edt eec eed eee eeg eel eeo eer ees eet egc egd ege egg egl ego egr egs egt elc eld ele elg ell elo elr els elt eo- eoc eod eoe eog eol eoo eor eos eot erc erd ere erg erl ero err ers ert es- esc esd ese esg esl eso esr ess est etc etd ete etg etl eto etr ets ett g-d gcc gcd gce gcg gcl gco gcr gcs gct gdc gdd gde gdl gdo gdr gds gdt ge- gec ged gee geg gel geo ger ges get ggc ggd ggg ggo ggr ggs ggt glc gld gle glg gll glo glr gls glt goc god goe gog gol goo gor gos got grc grd gre grg grl gro grr grs grt gsc gsd gse gsg gsl gso gsr gss gst gtc gtd gte gtg gtl gto gtr gts gtt lcc lcd lce lcg lcl lco lcr lcs lct ldc ldd lde ldg ldl ldo ldr lds ldt lec led lee leg lel leo ler les let lgc lgd lge lgg lgl lgo lgr lgs lgt llc lld lle llg lll llo llr lls llt loc lod loe log lol loo lor los lot lrc lrd lrg lro lrr lrs lrt lsc lsd lse lsg lsl lso lsr lss lst ltc ltd lte ltg ltl lto ltr lts ltt oc- occ ocd ocg ocl oco ocr ocs oct odc odd ode odg odl odo odr ods odt oec oed oee oeg oel oeo oer oes oet ogc ogd oge ogg ogl ogo ogs ogt olc old ole olg oll olo ols olt oo- ooc ood oog ool ooo oor oos oot or- orc ord ore org orl oro orr ors ort os- osc osd ose osg osl oso osr oss ost ot- otc otd ote otg otl oto otr ots ott rcc rcd rce rcg rcl rco rcr rcs rct rdc rdd rde rdg rdl rdo rdr rds rdt re- rec red ree reg rel reo rer res ret rgc rgd rge rgg rgo rgr rgs rgt rlc rld rle rlg rll rlo rlr rls rlt roc rod roe rog rol roo ror ros rot rrc rrd rrg rrl rrr rrs rrt rsc rsd rse rsg rsl rso rsr rss rst rtc rtd rte rtg rtl rto rtr rts rtt scc scd sce scg scl sco scr scs sct sdc sdd sde sdg sdl sdo sdr sds sdt se- sec sed see seg sel seo ser ses set sgc sgd sge sgg sgl sgo sgr sgs sgt slc sld sle slg sll slo slr sls slt soc sod soe sog sol soo sor sos sot sr- src srd sre srg srl sro srr srs srt ss- ssc ssd sse ssg ssl sso ssr sss sst stc std ste stg stl sto str sts stt tcc tcd tce tcg tcl tco tcr tcs tct tdc tdd tde tdg tdl tdo tdr tds tdt te- tec ted tee teg tel teo ter tes tet tgc tge tgg tgl tgo tgr tgs tgt tlc tld tle tlg tll tlo tlr tls tlt to- toc tod toe tog tol too tor tos tot trc trd tre trg trl tro trr trs trt tsc tsd tse tsg tsl tso tsr tss tst ttc ttd tte ttg ttl tto ttr tts ttt