nctoh cntoh ntcoh tncoh ctnoh tcnoh ncoth cnoth nocth oncth conth ocnth ntoch tnoch notch ontch tonch otnch ctonh tconh cotnh octnh tocnh otcnh nctho cntho ntcho tncho ctnho tcnho nchto cnhto nhcto hncto chnto hcnto nthco tnhco nhtco hntco thnco htnco cthno tchno chtno hctno thcno htcno ncoht cnoht nocht oncht conht ocnht nchot cnhot nhcot hncot chnot hcnot nohct onhct nhoct hnoct ohnct honct cohnt ochnt chont hcont ohcnt hocnt ntohc tnohc nothc onthc tonhc otnhc nthoc tnhoc nhtoc hntoc thnoc htnoc nohtc onhtc nhotc hnotc ohntc hontc tohnc othnc thonc htonc ohtnc hotnc ctohn tcohn cothn octhn tochn otchn cthon tchon chton hcton thcon htcon cohtn ochtn chotn hcotn ohctn hoctn tohcn othcn thocn htocn ohtcn hotcn
Note: these 'words' (valid or invalid) are all the permutations of the word nctoh. These words are obtained by scrambling the letters in nctoh.