rutyl urtyl rtuyl truyl utryl turyl ruytl urytl ryutl yrutl uyrtl yurtl rtyul tryul rytul yrtul tyrul ytrul utyrl tuyrl uytrl yutrl tyurl yturl rutly urtly rtuly truly utrly turly rulty urlty rluty lruty ulrty lurty rtluy trluy rltuy lrtuy tlruy ltruy utlry tulry ultry lutry tlury ltury ruylt urylt ryult yrult uyrlt yurlt rulyt urlyt rluyt lruyt ulryt luryt rylut yrlut rlyut lryut ylrut lyrut uylrt yulrt ulyrt luyrt ylurt lyurt rtylu trylu rytlu yrtlu tyrlu ytrlu rtlyu trlyu rltyu lrtyu tlryu ltryu ryltu yrltu rlytu lrytu ylrtu lyrtu tylru ytlru tlyru ltyru yltru lytru utylr tuylr uytlr yutlr tyulr ytulr utlyr tulyr ultyr lutyr tluyr ltuyr uyltr yultr ulytr luytr ylutr lyutr tylur ytlur tlyur ltyur yltur lytur
Note: these 'words' (valid or invalid) are all the permutations of the word rutyl. These words are obtained by scrambling the letters in rutyl.