palla aplla plala lpala alpla lapla palla aplla plala lpala alpla lapla pllaa lplaa pllaa lplaa llpaa llpaa allpa lalpa allpa lalpa llapa llapa palal aplal plaal lpaal alpal lapal paall apall paall apall aapll aapll plaal lpaal palal aplal lapal alpal alapl laapl aalpl aalpl laapl alapl palal aplal plaal lpaal alpal lapal paall apall paall apall aapll aapll plaal lpaal palal aplal lapal alpal alapl laapl aalpl aalpl laapl alapl pllaa lplaa pllaa lplaa llpaa llpaa plala lpala palla aplla lapla alpla plala lpala palla aplla lapla alpla llapa llapa lalpa allpa lalpa allpa allap lalap allap lalap llaap llaap alalp laalp aallp aallp laalp alalp alalp laalp aallp aallp laalp alalp llaap llaap lalap allap lalap allap
Note: these 'words' (valid or invalid) are all the permutations of the word palla. These words are obtained by scrambling the letters in palla.