mirks imrks mriks rmiks irmks rimks mikrs imkrs mkirs kmirs ikmrs kimrs mrkis rmkis mkris kmris rkmis krmis irkms rikms ikrms kirms rkims krims mirsk imrsk mrisk rmisk irmsk rimsk misrk imsrk msirk smirk ismrk simrk mrsik rmsik msrik smrik rsmik srmik irsmk rismk isrmk sirmk rsimk srimk miksr imksr mkisr kmisr ikmsr kimsr miskr imskr msikr smikr ismkr simkr mksir kmsir mskir smkir ksmir skmir iksmr kismr iskmr sikmr ksimr skimr mrksi rmksi mkrsi kmrsi rkmsi krmsi mrski rmski msrki smrki rsmki srmki mksri kmsri mskri smkri ksmri skmri rksmi krsmi rskmi srkmi ksrmi skrmi irksm riksm ikrsm kirsm rkism krism irskm riskm isrkm sirkm rsikm srikm iksrm kisrm iskrm sikrm ksirm skirm rksim krsim rskim srkim ksrim skrim
Note: these 'words' (valid or invalid) are all the permutations of the word mirks. These words are obtained by scrambling the letters in mirks.