trays rtays tarys atrys ratys artys tryas rtyas tyras ytras rytas yrtas tayrs atyrs tyars ytars aytrs yatrs rayts aryts ryats yrats ayrts yarts trasy rtasy tarsy atrsy ratsy artsy trsay rtsay tsray stray rstay srtay tasry atsry tsary stary astry satry rasty arsty rsaty sraty asrty sarty trysa rtysa tyrsa ytrsa rytsa yrtsa trsya rtsya tsrya strya rstya srtya tysra ytsra tsyra styra ystra sytra rysta yrsta rsyta sryta ysrta syrta taysr atysr tyasr ytasr aytsr yatsr tasyr atsyr tsayr stayr astyr satyr tysar ytsar tsyar styar ystar sytar aystr yastr asytr saytr ysatr syatr rayst aryst ryast yrast ayrst yarst rasyt arsyt rsayt srayt asryt saryt rysat yrsat rsyat sryat ysrat syrat aysrt yasrt asyrt sayrt ysart syart
Note: these 'words' (valid or invalid) are all the permutations of the word trays. These words are obtained by scrambling the letters in trays.