pully uplly pluly lpuly ulply luply pully uplly pluly lpuly ulply luply plluy lpluy plluy lpluy llpuy llpuy ullpy lulpy ullpy lulpy llupy llupy pulyl uplyl pluyl lpuyl ulpyl lupyl puyll upyll pyull ypull uypll yupll plyul lpyul pylul yplul lypul ylpul ulypl luypl uylpl yulpl lyupl ylupl pulyl uplyl pluyl lpuyl ulpyl lupyl puyll upyll pyull ypull uypll yupll plyul lpyul pylul yplul lypul ylpul ulypl luypl uylpl yulpl lyupl ylupl pllyu lplyu pllyu lplyu llpyu llpyu plylu lpylu pyllu ypllu lyplu ylplu plylu lpylu pyllu ypllu lyplu ylplu llypu llypu lylpu yllpu lylpu yllpu ullyp lulyp ullyp lulyp lluyp lluyp ulylp luylp uyllp yullp lyulp ylulp ulylp luylp uyllp yullp lyulp ylulp llyup llyup lylup yllup lylup yllup
Note: these 'words' (valid or invalid) are all the permutations of the word pully. These words are obtained by scrambling the letters in pully.