raven arven rvaen vraen avren varen raevn arevn reavn eravn aervn earvn rvean vrean revan ervan veran evran avern vaern aevrn eavrn vearn evarn ravne arvne rvane vrane avrne varne ranve arnve rnave nrave anrve narve rvnae vrnae rnvae nrvae vnrae nvrae avnre vanre anvre navre vnare nvare raenv arenv reanv eranv aernv earnv ranev arnev rnaev nraev anrev narev renav ernav rneav nreav enrav nerav aenrv eanrv anerv naerv enarv nearv rvena vrena revna ervna verna evrna rvnea vrnea rnvea nrvea vnrea nvrea renva ernva rneva nreva enrva nerva venra evnra vnera nvera envra nevra avenr vaenr aevnr eavnr veanr evanr avner vaner anver naver vnaer nvaer aenvr eanvr anevr naevr enavr neavr venar evnar vnear nvear envar nevar
Note: these 'words' (valid or invalid) are all the permutations of the word raven. These words are obtained by scrambling the letters in raven.