betty ebtty btety tbety etbty tebty betty ebtty btety tbety etbty tebty bttey tbtey bttey tbtey ttbey ttbey ettby tetby ettby tetby tteby tteby betyt ebtyt bteyt tbeyt etbyt tebyt beytt ebytt byett ybett eybtt yebtt btyet tbyet bytet ybtet tybet ytbet etybt teybt eytbt yetbt tyebt ytebt betyt ebtyt bteyt tbeyt etbyt tebyt beytt ebytt byett ybett eybtt yebtt btyet tbyet bytet ybtet tybet ytbet etybt teybt eytbt yetbt tyebt ytebt bttye tbtye bttye tbtye ttbye ttbye btyte tbyte bytte ybtte tybte ytbte btyte tbyte bytte ybtte tybte ytbte ttybe ttybe tytbe yttbe tytbe yttbe ettyb tetyb ettyb tetyb tteyb tteyb etytb teytb eyttb yettb tyetb ytetb etytb teytb eyttb yettb tyetb ytetb ttyeb ttyeb tyteb ytteb tyteb ytteb
Note: these 'words' (valid or invalid) are all the permutations of the word betty. These words are obtained by scrambling the letters in betty.