craft rcaft carft acrft racft arcft crfat rcfat cfrat fcrat rfcat frcat cafrt acfrt cfart fcart afcrt facrt rafct arfct rfact fract afrct farct cratf rcatf cartf acrtf ractf arctf crtaf rctaf ctraf tcraf rtcaf trcaf catrf actrf ctarf tcarf atcrf tacrf ratcf artcf rtacf tracf atrcf tarcf crfta rcfta cfrta fcrta rfcta frcta crtfa rctfa ctrfa tcrfa rtcfa trcfa cftra fctra ctfra tcfra ftcra tfcra rftca frtca rtfca trfca ftrca tfrca caftr acftr cfatr fcatr afctr factr catfr actfr ctafr tcafr atcfr tacfr cftar fctar ctfar tcfar ftcar tfcar aftcr fatcr atfcr tafcr ftacr tfacr raftc arftc rfatc fratc afrtc fartc ratfc artfc rtafc trafc atrfc tarfc rftac frtac rtfac trfac ftrac tfrac aftrc fatrc atfrc tafrc ftarc tfarc
Note: these 'words' (valid or invalid) are all the permutations of the word craft. These words are obtained by scrambling the letters in craft.