morts omrts mrots rmots ormts romts motrs omtrs mtors tmors otmrs tomrs mrtos rmtos mtros tmros rtmos trmos ortms rotms otrms torms rtoms troms morst omrst mrost rmost ormst romst mosrt omsrt msort smort osmrt somrt mrsot rmsot msrot smrot rsmot srmot orsmt rosmt osrmt sormt rsomt sromt motsr omtsr mtosr tmosr otmsr tomsr mostr omstr msotr smotr osmtr somtr mtsor tmsor mstor smtor tsmor stmor otsmr tosmr ostmr sotmr tsomr stomr mrtso rmtso mtrso tmrso rtmso trmso mrsto rmsto msrto smrto rsmto srmto mtsro tmsro mstro smtro tsmro stmro rtsmo trsmo rstmo srtmo tsrmo strmo ortsm rotsm otrsm torsm rtosm trosm orstm rostm osrtm sortm rsotm srotm otsrm tosrm ostrm sotrm tsorm storm rtsom trsom rstom srtom tsrom strom
Note: these 'words' (valid or invalid) are all the permutations of the word morts. These words are obtained by scrambling the letters in morts.