surga usrga sruga rsuga ursga rusga sugra usgra sgura gsura ugsra gusra srgua rsgua sgrua gsrua rgsua grsua urgsa rugsa ugrsa gursa rgusa grusa surag usrag sruag rsuag ursag rusag suarg usarg saurg asurg uasrg ausrg sraug rsaug sarug asrug rasug arsug urasg ruasg uarsg aursg rausg arusg sugar usgar sguar gsuar ugsar gusar suagr usagr saugr asugr uasgr ausgr sgaur gsaur sagur asgur gasur agsur ugasr guasr uagsr augsr gausr agusr srgau rsgau sgrau gsrau rgsau grsau sragu rsagu sargu asrgu rasgu arsgu sgaru gsaru sagru asgru gasru agsru rgasu grasu ragsu argsu garsu agrsu urgas rugas ugras guras rguas gruas urags ruags uargs aurgs raugs arugs ugars guars uagrs augrs gaurs agurs rgaus graus ragus argus garus agrus
Note: these 'words' (valid or invalid) are all the permutations of the word surga. These words are obtained by scrambling the letters in surga.