yules uyles ylues lyues ulyes luyes yuels uyels yeuls eyuls ueyls euyls yleus lyeus yelus eylus leyus elyus uleys lueys uelys eulys leuys eluys yulse uylse yluse lyuse ulyse luyse yusle uysle ysule syule usyle suyle ylsue lysue yslue sylue lsyue slyue ulsye lusye uslye sulye lsuye sluye yuesl uyesl yeusl eyusl ueysl euysl yusel uysel ysuel syuel usyel suyel yesul eysul yseul syeul esyul seyul uesyl eusyl useyl sueyl esuyl seuyl ylesu lyesu yelsu eylsu leysu elysu ylseu lyseu ysleu syleu lsyeu slyeu yeslu eyslu yselu syelu esylu seylu lesyu elsyu lseyu sleyu eslyu selyu ulesy luesy uelsy eulsy leusy elusy ulsey lusey usley suley lsuey sluey uesly eusly usely suely esuly seuly lesuy elsuy lseuy sleuy esluy seluy
Note: these 'words' (valid or invalid) are all the permutations of the word yules. These words are obtained by scrambling the letters in yules.