simls ismls smils msils imsls misls silms islms slims lsims ilsms lisms smlis mslis slmis lsmis mlsis lmsis imlss milss ilmss limss mliss lmiss simsl ismsl smisl msisl imssl missl sisml issml ssiml ssiml issml sisml smsil mssil ssmil ssmil mssil smsil imssl missl ismsl simsl msisl smisl silsm islsm slism lsism ilssm lissm sislm isslm ssilm ssilm isslm sislm slsim lssim sslim sslim lssim slsim ilssm lissm islsm silsm lsism slism smlsi mslsi slmsi lsmsi mlssi lmssi smsli mssli ssmli ssmli mssli smsli slsmi lssmi sslmi sslmi lssmi slsmi mlssi lmssi mslsi smlsi lsmsi slmsi imlss milss ilmss limss mliss lmiss imsls misls ismls simls msils smils ilsms lisms islms silms lsims slims mlsis lmsis mslis smlis lsmis slmis
Note: these 'words' (valid or invalid) are all the permutations of the word simls. These words are obtained by scrambling the letters in simls.