yaats ayats yaats ayats aayts aayts yatas aytas ytaas tyaas atyas tayas yatas aytas ytaas tyaas atyas tayas aatys aatys atays taays atays taays yaast ayast yaast ayast aayst aayst yasat aysat ysaat syaat asyat sayat yasat aysat ysaat syaat asyat sayat aasyt aasyt asayt saayt asayt saayt yatsa aytsa ytasa tyasa atysa taysa yasta aysta ysata syata asyta sayta ytsaa tysaa ystaa sytaa tsyaa styaa atsya tasya astya satya tsaya staya yatsa aytsa ytasa tyasa atysa taysa yasta aysta ysata syata asyta sayta ytsaa tysaa ystaa sytaa tsyaa styaa atsya tasya astya satya tsaya staya aatsy aatsy atasy taasy atasy taasy aasty aasty asaty saaty asaty saaty atsay tasay astay satay tsaay staay atsay tasay astay satay tsaay staay
Note: these 'words' (valid or invalid) are all the permutations of the word yaats. These words are obtained by scrambling the letters in yaats.