cargo acrgo crago rcago arcgo racgo cagro acgro cgaro gcaro agcro gacro crgao rcgao cgrao gcrao rgcao grcao argco ragco agrco garco rgaco graco carog acrog craog rcaog arcog racog caorg acorg coarg ocarg aocrg oacrg croag rcoag corag ocrag rocag orcag arocg raocg aorcg oarcg roacg oracg cagor acgor cgaor gcaor agcor gacor caogr acogr coagr ocagr aocgr oacgr cgoar gcoar cogar ocgar gocar ogcar agocr gaocr aogcr oagcr goacr ogacr crgoa rcgoa cgroa gcroa rgcoa grcoa croga rcoga corga ocrga rocga orcga cgora gcora cogra ocgra gocra ogcra rgoca groca rogca orgca gorca ogrca argoc ragoc agroc garoc rgaoc graoc arogc raogc aorgc oargc roagc oragc agorc gaorc aogrc oagrc goarc ogarc rgoac groac rogac orgac gorac ograc
Note: these 'words' (valid or invalid) are all the permutations of the word cargo. These words are obtained by scrambling the letters in cargo.