frunt frust ftrtt fu-fu fuffs funts furrs furst furus fusts fusun fusus futsu futur nstnt nu-nu nunns nunun nursu nurun nurus nusus rnsts rsssf rsust rttns ruffs rufus runst runts rusts rustu ruutu snrfs snuff snuft snurt snuss sssss stftn stnfr strrs strut sttns sttsn stuff stuft stuns stunt sturt stuss suffr suffs suftu suntu surfs surtr surur surus susun susus suttu suuns t-nut tntnt tnuts truff truss trust truus tsuru tsuur ttttt tuffs tufts turfs turn- turns turnt turnu turss turst tursu turtu turut tutun tutus tuuru unfun unfur unnun unnur unnut unrun unstr unsu unsun unurn ursus urutu ussun ustur usutu utfsf uttur uturn uturu uuuuu