resaw ersaw rseaw sreaw esraw seraw reasw erasw raesw aresw earsw aersw rsaew sraew rasew arsew sarew asrew esarw searw easrw aesrw saerw aserw reswa erswa rsewa srewa esrwa serwa rewsa erwsa rwesa wresa ewrsa wersa rswea srwea rwsea wrsea swrea wsrea eswra sewra ewsra wesra swera wsera reaws eraws raews arews earws aerws rewas erwas rweas wreas ewras weras rawes arwes rwaes wraes awres wares eawrs aewrs ewars wears awers waers rsawe srawe raswe arswe sarwe asrwe rswae srwae rwsae wrsae swrae wsrae rawse arwse rwase wrase awrse warse sawre aswre sware wsare awsre wasre esawr seawr easwr aeswr saewr asewr eswar sewar ewsar wesar swear wsear eawsr aewsr ewasr weasr awesr waesr sawer aswer swaer wsaer awser waser
Note: these 'words' (valid or invalid) are all the permutations of the word resaw. These words are obtained by scrambling the letters in resaw.