cecum eccum cceum cceum eccum cecum ceucm ecucm cuecm ucecm euccm ueccm ccuem ccuem cucem uccem cucem uccem ecucm ceucm euccm ueccm cuecm ucecm cecmu eccmu ccemu ccemu eccmu cecmu cemcu ecmcu cmecu mcecu emccu meccu ccmeu ccmeu cmceu mcceu cmceu mcceu ecmcu cemcu emccu meccu cmecu mcecu ceumc ecumc cuemc ucemc eucmc uecmc cemuc ecmuc cmeuc mceuc emcuc mecuc cumec ucmec cmuec mcuec umcec mucec eumcc uemcc emucc meucc umecc muecc ccume ccume cucme uccme cucme uccme ccmue ccmue cmcue mccue cmcue mccue cumce ucmce cmuce mcuce umcce mucce cumce ucmce cmuce mcuce umcce mucce ecumc ceumc eucmc uecmc cuemc ucemc ecmuc cemuc emcuc mecuc cmeuc mceuc eumcc uemcc emucc meucc umecc muecc cumec ucmec cmuec mcuec umcec mucec
Note: these 'words' (valid or invalid) are all the permutations of the word cecum. These words are obtained by scrambling the letters in cecum.