cotan octan ctoan tcoan otcan tocan coatn ocatn caotn acotn oactn aoctn ctaon tcaon caton acton tacon atcon otacn toacn oatcn aotcn taocn atocn cotna octna ctona tcona otcna tocna conta ocnta cnota ncota oncta nocta ctnoa tcnoa cntoa nctoa tncoa ntcoa otnca tonca ontca notca tnoca ntoca coant ocant caont acont oacnt aocnt conat ocnat cnoat ncoat oncat nocat canot acnot cnaot ncaot ancot nacot oanct aonct onact noact anoct naoct ctano tcano catno actno tacno atcno ctnao tcnao cntao nctao tncao ntcao canto acnto cnato ncato ancto nacto tanco atnco tnaco ntaco antco natco otanc toanc oatnc aotnc taonc atonc otnac tonac ontac notac tnoac ntoac oantc aontc onatc noatc anotc naotc tanoc atnoc tnaoc ntaoc antoc natoc
Note: these 'words' (valid or invalid) are all the permutations of the word cotan. These words are obtained by scrambling the letters in cotan.