yeslk eyslk yselk syelk esylk seylk yelsk eylsk ylesk lyesk elysk leysk yslek sylek ylsek lysek slyek lsyek eslyk selyk elsyk lesyk sleyk lseyk yeskl eyskl ysekl syekl esykl seykl yeksl eyksl ykesl kyesl ekysl keysl yskel sykel yksel kysel skyel ksyel eskyl sekyl eksyl kesyl skeyl kseyl yelks eylks yleks lyeks elyks leyks yekls eykls ykels kyels ekyls keyls ylkes lykes ykles kyles lkyes klyes elkys lekys eklys kelys lkeys kleys yslke sylke ylske lyske slyke lsyke yskle sykle yksle kysle skyle ksyle ylkse lykse yklse kylse lkyse klyse slkye lskye sklye kslye lksye klsye eslky selky elsky lesky sleky lseky eskly sekly eksly kesly skely ksely elksy leksy eklsy kelsy lkesy klesy slkey lskey skley ksley lksey klsey
Note: these 'words' (valid or invalid) are all the permutations of the word yeslk. These words are obtained by scrambling the letters in yeslk.