easts aests esats seats asets saets eatss aetss etass teass atess taess estas setas etsas tesas steas tseas astes sates atses tases staes tsaes easst aesst esast seast asest saest easst aesst esast seast asest saest essat sesat essat sesat sseat sseat asset saset asset saset ssaet ssaet eatss aetss etass teass atess taess easts aests esats seats asets saets etsas tesas estas setas tseas steas atses tases astes sates tsaes staes estsa setsa etssa tessa stesa tsesa essta sesta essta sesta sseta sseta etssa tessa estsa setsa tsesa stesa stsea tssea sstea sstea tssea stsea astse satse atsse tasse stase tsase asste saste asste saste ssate ssate atsse tasse astse satse tsase stase stsae tssae sstae sstae tssae stsae
Note: these 'words' (valid or invalid) are all the permutations of the word easts. These words are obtained by scrambling the letters in easts.