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