trons rtons torns otrns rotns ortns trnos rtnos tnros ntros rntos nrtos tonrs otnrs tnors ntors ontrs notrs ronts ornts rnots nrots onrts norts trosn rtosn torsn otrsn rotsn ortsn trson rtson tsron stron rston srton tosrn otsrn tsorn storn ostrn sotrn rostn orstn rsotn srotn osrtn sortn trnso rtnso tnrso ntrso rntso nrtso trsno rtsno tsrno strno rstno srtno tnsro ntsro tsnro stnro nstro sntro rnsto nrsto rsnto srnto nsrto snrto tonsr otnsr tnosr ntosr ontsr notsr tosnr otsnr tsonr stonr ostnr sotnr tnsor ntsor tsnor stnor nstor sntor onstr nostr osntr sontr nsotr snotr ronst ornst rnost nrost onrst norst rosnt orsnt rsont sront osrnt sornt rnsot nrsot rsnot srnot nsrot snrot onsrt nosrt osnrt sonrt nsort snort
Note: these 'words' (valid or invalid) are all the permutations of the word trons. These words are obtained by scrambling the letters in trons.