surea usrea sruea rsuea ursea rusea suera usera seura esura uesra eusra sreua rseua serua esrua resua ersua uresa ruesa uersa eursa reusa erusa surae usrae sruae rsuae ursae rusae suare usare saure asure uasre ausre sraue rsaue sarue asrue rasue arsue urase ruase uarse aurse rause aruse suear usear seuar esuar uesar eusar suaer usaer sauer asuer uaser auser seaur esaur saeur aseur easur aesur ueasr euasr uaesr auesr eausr aeusr sreau rseau serau esrau resau ersau sraeu rsaeu sareu asreu raseu arseu searu esaru saeru aseru easru aesru reasu erasu raesu aresu earsu aersu ureas rueas ueras euras reuas eruas uraes ruaes uares aures raues arues uears euars uaers auers eaurs aeurs reaus eraus raeus areus earus aerus
Note: these 'words' (valid or invalid) are all the permutations of the word surea. These words are obtained by scrambling the letters in surea.