ruled urled rlued lrued ulred lured rueld ureld reuld eruld uerld eurld rleud lreud relud erlud lerud elrud ulerd luerd uelrd eulrd leurd elurd rulde urlde rlude lrude ulrde lurde rudle urdle rdule drule udrle durle rldue lrdue rdlue drlue ldrue dlrue uldre ludre udlre dulre ldure dlure ruedl uredl reudl erudl uerdl eurdl rudel urdel rduel druel udrel durel redul erdul rdeul dreul edrul derul uedrl eudrl uderl duerl edurl deurl rledu lredu reldu erldu lerdu elrdu rldeu lrdeu rdleu drleu ldreu dlreu redlu erdlu rdelu drelu edrlu derlu ledru eldru lderu dleru edlru delru uledr luedr ueldr euldr leudr eludr ulder luder udler duler lduer dluer uedlr eudlr udelr duelr edulr deulr ledur eldur ldeur dleur edlur delur
Note: these 'words' (valid or invalid) are all the permutations of the word ruled. These words are obtained by scrambling the letters in ruled.