c-- ccc ccd ccg cco ccr ccw cdc cdd cdg cdo cdr cdw cgc cgd cgg cgo cgr cgw co- coc cod cog coo cor cow crc crd crg cro crr crw cw- cwc cwd cwg cwo cwr dcc dcd dcg dco dcr dcw ddc ddd ddg ddo ddr ddw dgc dgd dgg dgr dgw doc dod dog doo dor dow drc drd drg dro drr drw dwc dwg dwo dwr dww g-d gcc gcd gcg gco gcr gcw gdc gdd gdo gdr gdw ggc ggd ggg ggo ggr ggw goc god gog goo gor gow grc grd grg gro grr grw gwc gwd gwg gwr oc- occ ocd ocg oco ocr ocw odc odd odg odo odr ogc ogd ogg ogo oo- ooc ood oog ooo oor oow or- orc ord org oro orr owc owd owo oww rcc rcd rcg rco rcr rcw rdc rdd rdg rdo rdr rgc rgd rgg rgo rgr rgw roc rod rog roo ror row rrc rrd rrg rrr rwc rwd rwr wcc wcd wcg wco wcr wcw wdc wdg wdr wgc wgo wgr wgw woc wod wog woo wor wow wr- wrc wrd wrg wro wrr wrw wwc wwd wwo www