erevs reevs eervs eervs reevs erevs erves reves evres veres rvees vrees eevrs eevrs evers veers evers veers reves erves rvees vrees evres veres eresv reesv eersv eersv reesv eresv ersev resev esrev serev rseev sreev eesrv eesrv eserv seerv eserv seerv resev ersev rseev sreev esrev serev ervse revse evrse verse rvese vrese ersve resve esrve serve rseve sreve evsre vesre esvre sevre vsere svere rvsee vrsee rsvee srvee vsree svree eevsr eevsr evesr veesr evesr veesr eesvr eesvr esevr seevr esevr seevr evser veser esver sever vseer sveer evser veser esver sever vseer sveer revse ervse rvese vrese evrse verse resve ersve rseve sreve esrve serve rvsee vrsee rsvee srvee vsree svree evsre vesre esvre sevre vsere svere
Note: these 'words' (valid or invalid) are all the permutations of the word erevs. These words are obtained by scrambling the letters in erevs.