lysin ylsin lsyin slyin yslin sylin lyisn ylisn liysn ilysn yilsn iylsn lsiyn sliyn lisyn ilsyn silyn islyn ysiln syiln yisln iysln siyln isyln lysni ylsni lsyni slyni yslni sylni lynsi ylnsi lnysi nlysi ynlsi nylsi lsnyi slnyi lnsyi nlsyi snlyi nslyi ysnli synli ynsli nysli snyli nsyli lyins ylins liyns ilyns yilns iylns lynis ylnis lnyis nlyis ynlis nylis linys ilnys lniys nliys inlys nilys yinls iynls ynils nyils inyls niyls lsiny sliny lisny ilsny silny islny lsniy slniy lnsiy nlsiy snliy nsliy linsy ilnsy lnisy nlisy inlsy nilsy sinly isnly snily nsily insly nisly ysinl syinl yisnl iysnl siynl isynl ysnil synil ynsil nysil snyil nsyil yinsl iynsl ynisl nyisl inysl niysl sinyl isnyl sniyl nsiyl insyl nisyl
Note: these 'words' (valid or invalid) are all the permutations of the word lysin. These words are obtained by scrambling the letters in lysin.