marls amrls mrals rmals armls ramls malrs amlrs mlars lmars almrs lamrs mrlas rmlas mlras lmras rlmas lrmas arlms ralms alrms larms rlams lrams marsl amrsl mrasl rmasl armsl ramsl masrl amsrl msarl smarl asmrl samrl mrsal rmsal msral smral rsmal srmal arsml rasml asrml sarml rsaml sraml malsr amlsr mlasr lmasr almsr lamsr maslr amslr msalr smalr asmlr samlr mlsar lmsar mslar smlar lsmar slmar alsmr lasmr aslmr salmr lsamr slamr mrlsa rmlsa mlrsa lmrsa rlmsa lrmsa mrsla rmsla msrla smrla rsmla srmla mlsra lmsra mslra smlra lsmra slmra rlsma lrsma rslma srlma lsrma slrma arlsm ralsm alrsm larsm rlasm lrasm arslm raslm asrlm sarlm rsalm sralm alsrm lasrm aslrm salrm lsarm slarm rlsam lrsam rslam srlam lsram slram
Note: these 'words' (valid or invalid) are all the permutations of the word marls. These words are obtained by scrambling the letters in marls.