yetts eytts ytets tyets etyts teyts yetts eytts ytets tyets etyts teyts yttes tytes yttes tytes ttyes ttyes ettys tetys ettys tetys tteys tteys yetst eytst ytest tyest etyst teyst yestt eystt ysett syett esytt seytt ytset tyset ystet sytet tsyet styet etsyt tesyt estyt setyt tseyt steyt yetst eytst ytest tyest etyst teyst yestt eystt ysett syett esytt seytt ytset tyset ystet sytet tsyet styet etsyt tesyt estyt setyt tseyt steyt yttse tytse yttse tytse ttyse ttyse ytste tyste ystte sytte tsyte styte ytste tyste ystte sytte tsyte styte ttsye ttsye tstye sttye tstye sttye ettsy tetsy ettsy tetsy ttesy ttesy etsty testy estty setty tsety stety etsty testy estty setty tsety stety ttsey ttsey tstey sttey tstey sttey
Note: these 'words' (valid or invalid) are all the permutations of the word yetts. These words are obtained by scrambling the letters in yetts.