tondo otndo tnodo ntodo ontdo notdo todno otdno tdono dtono odtno dotno tndoo ntdoo tdnoo dtnoo ndtoo dntoo ondto nodto odnto donto ndoto dnoto tonod otnod tnood ntood ontod notod toond otond toond otond ootnd ootnd tnood ntood tonod otnod notod ontod onotd nootd oontd oontd nootd onotd todon otdon tdoon dtoon odton doton toodn otodn toodn otodn ootdn ootdn tdoon dtoon todon otdon doton odton odotn dootn oodtn oodtn dootn odotn tndoo ntdoo tdnoo dtnoo ndtoo dntoo tnodo ntodo tondo otndo notdo ontdo tdono dtono todno otdno dotno odtno ndoto dnoto nodto ondto donto odnto ondot nodot odnot donot ndoot dnoot onodt noodt oondt oondt noodt onodt odont doont oodnt oodnt doont odont ndoot dnoot nodot ondot donot odnot
Note: these 'words' (valid or invalid) are all the permutations of the word tondo. These words are obtained by scrambling the letters in tondo.