-er -ol c-- ccc ccd cce cch ccl cco ccr ccs cdc cdd cde cdh cdl cdo cdr cds ce- cec ced cee ceh cel ceo cer ces ch- chc chd che chh chl cho chr chs cl- clc cld cle clh cll clo clr cls co- coc cod coe coh col coo cor cos crc crd cre crh crl cro crr crs csc csd cse csh csl cso csr css dcc dcd dce dcl dco dcr dcs ddc ddd dde ddh ddl ddo ddr dds de- dec ded dee deh del deo der des dh- dhc dhd dhe dhh dhl dho dhr dhs dl- dlc dld dle dlh dll dlo dlr dls doc dod doe doh dol doo dor dos drc drd dre drl dro drr drs dsc dsd dse dsh dsl dso dsr dss ec- ecc ecd ece ech ecl eco ecr ecs ed- edc edd ede edh edl edo edr eds eec eed eee eel eeo eer ees ehc ehd ehe ehh ehl eho ehr ehs elc eld ele elh ell elo elr els eo- eoc eod eoe eoh eol eoo eor eos erc erd ere erh erl ero err ers es- esc esd ese esh esl eso esr ess hcc hcd hce hch hcl hco hcr hcs hdc hdd hde hdh hdl hdo hdr hds he- hec hed hee heh hel heo her hes hhc hhd hhe hhh hhl hho hhr hhs hlc hld hle hlh hll hlo hlr hls hoc hod hoe hoh hol hoo hor hos hr- hrc hrd hre hrh hrl hro hrr hrs hsc hsd hse hsh hsl hsr hss lcc lcd lce lch lcl lco lcr lcs ldc ldd lde ldh ldl ldo ldr lds lec led lee leh lel leo ler les lhc lhd lhh lho lhr lhs llc lld lle lll llo llr lls loc lod loe loh lol loo lor los lrc lrd lrh lro lrr lrs lsc lsd lse lsh lsl lso lsr lss oc- occ ocd och ocl oco ocr ocs odc odd ode odh odl odo odr ods oec oed oee oeh oel oeo oer oes ohc ohd ohe ohh ohl oho ohr ohs olc old ole oll olo ols oo- ooc ood ooh ool ooo oor oos or- orc ord ore orh orl oro orr ors os- osc osd ose osh osl oso osr oss rcc rcd rce rch rcl rco rcr rcs rdc rdd rde rdh rdl rdo rdr rds re- rec red ree reh rel reo rer res rh- rhc rhd rhe rhh rhl rho rhr rhs rlc rld rle rlh rll rlo rlr rls roc rod roe roh rol roo ror ros rrc rrd rrh rrl rrr rrs rsc rsd rse rsh rsl rso rsr rss scc scd sce sch scl sco scr scs sdc sdd sde sdh sdl sdo sdr sds se- sec sed see seh sel seo ser ses sh- shc shd she shh shl sho shr shs slc sld sle slh sll slo slr sls soc sod soe soh sol soo sor sos sr- src srd sre srh srl sro srr srs ss- ssc ssd sse ssh ssl sso ssr sss