saigr asigr siagr isagr aisgr iasgr sagir asgir sgair gsair agsir gasir sigar isgar sgiar gsiar igsar gisar aigsr iagsr agisr gaisr igasr giasr sairg asirg siarg isarg aisrg iasrg sarig asrig sraig rsaig arsig rasig sirag israg sriag rsiag irsag risag airsg iarsg arisg raisg irasg riasg sagri asgri sgari gsari agsri gasri sargi asrgi sragi rsagi arsgi rasgi sgrai gsrai srgai rsgai grsai rgsai agrsi garsi argsi ragsi grasi rgasi sigra isgra sgira gsira igsra gisra sirga isrga sriga rsiga irsga risga sgria gsria srgia rsgia grsia rgsia igrsa girsa irgsa rigsa grisa rgisa aigrs iagrs agirs gairs igars giars airgs iargs arigs raigs irags riags agris garis argis ragis grais rgais igras giras irgas rigas grias rgias
Note: these 'words' (valid or invalid) are all the permutations of the word saigr. These words are obtained by scrambling the letters in saigr.