dadah addah ddaah ddaah addah dadah daadh adadh daadh adadh aaddh aaddh ddaah ddaah dadah addah dadah addah adadh daadh aaddh aaddh daadh adadh dadha addha ddaha ddaha addha dadha dahda adhda dhada hdada ahdda hadda ddhaa ddhaa dhdaa hddaa dhdaa hddaa adhda dahda ahdda hadda dhada hdada daahd adahd daahd adahd aadhd aadhd dahad adhad dhaad hdaad ahdad hadad dahad adhad dhaad hdaad ahdad hadad aahdd aahdd ahadd haadd ahadd haadd ddaha ddaha dadha addha dadha addha ddhaa ddhaa dhdaa hddaa dhdaa hddaa dahda adhda dhada hdada ahdda hadda dahda adhda dhada hdada ahdda hadda adahd daahd aadhd aadhd daahd adahd adhad dahad ahdad hadad dhaad hdaad aahdd aahdd ahadd haadd ahadd haadd dahad adhad dhaad hdaad ahdad hadad
Note: these 'words' (valid or invalid) are all the permutations of the word dadah. These words are obtained by scrambling the letters in dadah.