gyrus ygrus gryus rgyus yrgus rygus gyurs ygurs guyrs ugyrs yugrs uygrs gruys rguys gurys ugrys rugys urgys yrugs ryugs yurgs uyrgs ruygs urygs gyrsu ygrsu grysu rgysu yrgsu rygsu gysru ygsru gsyru sgyru ysgru sygru grsyu rgsyu gsryu sgryu rsgyu srgyu yrsgu rysgu ysrgu syrgu rsygu srygu gyusr ygusr guysr ugysr yugsr uygsr gysur ygsur gsyur sgyur ysgur sygur gusyr ugsyr gsuyr sguyr usgyr sugyr yusgr uysgr ysugr syugr usygr suygr grusy rgusy gursy ugrsy rugsy urgsy grsuy rgsuy gsruy sgruy rsguy srguy gusry ugsry gsury sgury usgry sugry rusgy ursgy rsugy srugy usrgy surgy yrusg ryusg yursg uyrsg ruysg urysg yrsug rysug ysrug syrug rsyug sryug yusrg uysrg ysurg syurg usyrg suyrg rusyg ursyg rsuyg sruyg usryg suryg
Note: these 'words' (valid or invalid) are all the permutations of the word gyrus. These words are obtained by scrambling the letters in gyrus.