sayst asyst syast ysast aysst yasst sasyt assyt ssayt ssayt assyt sasyt sysat yssat ssyat ssyat yssat sysat aysst yasst asyst sayst ysast syast sayts asyts syats ysats aysts yasts satys astys stays tsays atsys tasys sytas ystas styas tsyas ytsas tysas aytss yatss atyss tayss ytass tyass sasty assty ssaty ssaty assty sasty satsy astsy stasy tsasy atssy tassy sstay sstay stsay tssay stsay tssay astsy satsy atssy tassy stasy tsasy systa yssta ssyta ssyta yssta systa sytsa ystsa stysa tsysa ytssa tyssa sstya sstya stsya tssya stsya tssya ystsa sytsa ytssa tyssa stysa tsysa aysts yasts asyts sayts ysats syats aytss yatss atyss tayss ytass tyass astys satys atsys tasys stays tsays ystas sytas ytsas tysas styas tsyas
Note: these 'words' (valid or invalid) are all the permutations of the word sayst. These words are obtained by scrambling the letters in sayst.