rester erster rseter sreter esrter serter retser ertser rteser treser etrser terser rsteer srteer rtseer trseer streer tsreer estrer setrer etsrer tesrer sterer tserer resetr ersetr rseetr sreetr esretr seretr reestr erestr reestr erestr eerstr eerstr rseetr sreetr resetr ersetr seretr esretr esertr seertr eesrtr eesrtr seertr esertr retesr ertesr rteesr treesr etresr teresr reetsr eretsr reetsr eretsr eertsr eertsr rteesr treesr retesr ertesr teresr etresr etersr teersr eetrsr eetrsr teersr etersr rsteer srteer rtseer trseer streer tsreer rseter sreter rester erster serter esrter rteser treser retser ertser terser etrser sterer tserer setrer estrer tesrer etsrer esterr seterr etserr teserr steerr tseerr esetrr seetrr eestrr eestrr seetrr esetrr etesrr teesrr eetsrr eetsrr teesrr etesrr steerr tseerr seterr esterr teserr etserr restre erstre rsetre sretre esrtre sertre retsre ertsre rtesre tresre etrsre tersre rstere srtere rtsere trsere strere tsrere estrre setrre etsrre tesrre sterre tserre resrte ersrte rserte srerte esrrte serrte rerste errste rreste rreste errste rerste rsrete srrete rrsete rrsete srrete rsrete esrrte serrte ersrte resrte srerte rserte retrse ertrse rterse trerse etrrse terrse rertse errtse rretse rretse errtse rertse rtrese trrese rrtese rrtese trrese rtrese etrrse terrse ertrse retrse trerse rterse rstree srtree rtsree trsree strree tsrree rsrtee srrtee rrstee rrstee srrtee rsrtee rtrsee trrsee rrtsee rrtsee trrsee rtrsee strree tsrree srtree rstree trsree rtsree estrre setrre etsrre tesrre sterre tserre esrtre sertre erstre restre sretre rsetre etrsre tersre ertsre retsre tresre rtesre strere tsrere srtere rstere trsere rtsere resert ersert rseert sreert esrert serert reesrt eresrt reesrt eresrt eersrt eersrt rseert sreert resert ersert serert esrert eserrt seerrt eesrrt eesrrt seerrt eserrt resret ersret rseret sreret esrret serret rerset errset rreset rreset errset rerset rsreet srreet rrseet rrseet srreet rsreet esrret serret ersret resret sreret rseret reerst ererst reerst ererst eerrst eerrst rerest errest rreest rreest errest rerest rerest errest rreest rreest errest rerest eerrst eerrst ererst reerst ererst reerst rseret sreret resret ersret serret esrret rsreet srreet rrseet rrseet srreet rsreet rerset errset rreset rreset errset rerset serret esrret sreret rseret ersret resret eserrt seerrt eesrrt eesrrt seerrt eserrt esrert serert ersert resert sreert rseert eersrt eersrt eresrt reesrt eresrt reesrt serert esrert sreert rseert ersert resert reters erters rteers treers etrers terers reetrs eretrs reetrs eretrs eertrs eertrs rteers treers reters erters terers etrers eterrs teerrs eetrrs eetrrs teerrs eterrs retres ertres rteres treres etrres terres rertes errtes rretes rretes errtes rertes rtrees trrees rrtees rrtees trrees rtrees etrres terres ertres retres treres rteres reerts ererts reerts ererts eerrts eerrts rerets errets rreets rreets errets rerets rerets errets rreets rreets errets rerets eerrts eerrts ererts reerts ererts reerts rteres treres retres ertres terres etrres rtrees trrees rrtees rrtees trrees rtrees rertes errtes rretes rretes errtes rertes terres etrres treres rteres ertres retres eterrs teerrs eetrrs eetrrs teerrs eterrs etrers terers erters reters treers rteers eertrs eertrs eretrs reetrs eretrs reetrs terers etrers treers rteers erters reters rstere srtere rtsere trsere strere tsrere rsetre sretre restre erstre sertre esrtre rtesre tresre retsre ertsre tersre etrsre sterre tserre setrre estrre tesrre etsrre rstree srtree rtsree trsree strree tsrree rsrtee srrtee rrstee rrstee srrtee rsrtee rtrsee trrsee rrtsee rrtsee trrsee rtrsee strree tsrree srtree rstree trsree rtsree rserte srerte resrte ersrte serrte esrrte rsrete srrete rrsete rrsete srrete rsrete rerste errste rreste rreste errste rerste serrte esrrte srerte rserte ersrte resrte rterse trerse retrse ertrse terrse etrrse rtrese trrese rrtese rrtese trrese rtrese rertse errtse rretse rretse errtse rertse terrse etrrse trerse rterse ertrse retrse sterre tserre setrre estrre tesrre etsrre strere tsrere srtere rstere trsere rtsere sertre esrtre sretre rsetre erstre restre tersre etrsre tresre rtesre ertsre retsre esterr seterr etserr teserr steerr tseerr esetrr seetrr eestrr eestrr seetrr esetrr etesrr teesrr eetsrr eetsrr teesrr etesrr steerr tseerr seterr esterr teserr etserr estrer setrer etsrer tesrer sterer tserer esrter serter erster rester sreter rseter etrser terser ertser retser treser rteser streer tsreer srteer rsteer trseer rtseer esertr seertr eesrtr eesrtr seertr esertr esretr seretr ersetr resetr sreetr rseetr eerstr eerstr erestr reestr erestr reestr seretr esretr sreetr rseetr ersetr resetr etersr teersr eetrsr eetrsr teersr etersr etresr teresr ertesr retesr treesr rteesr eertsr eertsr eretsr reetsr eretsr reetsr teresr etresr treesr rteesr ertesr retesr sterer tserer setrer estrer tesrer etsrer streer tsreer srteer rsteer trseer rtseer serter esrter sreter rseter erster rester terser etrser treser rteser ertser retser
Note: these 'words' (valid or invalid) are all the permutations of the word rester. These words are obtained by scrambling the letters in rester.