rollup orllup rlolup lrolup olrlup lorlup rollup orllup rlolup lrolup olrlup lorlup rlloup lrloup rlloup lrloup llroup llroup ollrup lolrup ollrup lolrup llorup llorup rolulp orlulp rloulp lroulp olrulp lorulp roullp orullp ruollp urollp ourllp uorllp rluolp lruolp rulolp urlolp lurolp ulrolp olurlp lourlp oulrlp uolrlp luorlp ulorlp rolulp orlulp rloulp lroulp olrulp lorulp roullp orullp ruollp urollp ourllp uorllp rluolp lruolp rulolp urlolp lurolp ulrolp olurlp lourlp oulrlp uolrlp luorlp ulorlp rlluop lrluop rlluop lrluop llruop llruop rlulop lrulop rullop urllop lurlop ulrlop rlulop lrulop rullop urllop lurlop ulrlop llurop llurop lulrop ullrop lulrop ullrop ollurp lolurp ollurp lolurp llourp llourp olulrp loulrp oullrp uollrp luolrp ulolrp olulrp loulrp oullrp uollrp luolrp ulolrp lluorp lluorp lulorp ullorp lulorp ullorp rollpu orllpu rlolpu lrolpu olrlpu lorlpu rollpu orllpu rlolpu lrolpu olrlpu lorlpu rllopu lrlopu rllopu lrlopu llropu llropu ollrpu lolrpu ollrpu lolrpu llorpu llorpu rolplu orlplu rloplu lroplu olrplu lorplu ropllu orpllu rpollu prollu oprllu porllu rlpolu lrpolu rplolu prlolu lprolu plrolu olprlu loprlu oplrlu polrlu lporlu plorlu rolplu orlplu rloplu lroplu olrplu lorplu ropllu orpllu rpollu prollu oprllu porllu rlpolu lrpolu rplolu prlolu lprolu plrolu olprlu loprlu oplrlu polrlu lporlu plorlu rllpou lrlpou rllpou lrlpou llrpou llrpou rlplou lrplou rpllou prllou lprlou plrlou rlplou lrplou rpllou prllou lprlou plrlou llprou llprou lplrou pllrou lplrou pllrou ollpru lolpru ollpru lolpru llopru llopru olplru loplru opllru pollru lpolru plolru olplru loplru opllru pollru lpolru plolru llporu llporu lploru plloru lploru plloru rolupl orlupl rloupl lroupl olrupl lorupl roulpl orulpl ruolpl urolpl ourlpl uorlpl rluopl lruopl rulopl urlopl luropl ulropl olurpl lourpl oulrpl uolrpl luorpl ulorpl rolpul orlpul rlopul lropul olrpul lorpul roplul orplul rpolul prolul oprlul porlul rlpoul lrpoul rploul prloul lproul plroul olprul loprul oplrul polrul lporul plorul roupll orupll ruopll uropll ourpll uorpll ropull orpull rpoull proull oprull porull rupoll urpoll rpuoll pruoll uproll puroll ouprll uoprll opurll pourll uporll puorll rlupol lrupol rulpol urlpol lurpol ulrpol rlpuol lrpuol rpluol prluol lpruol plruol ruplol urplol rpulol prulol uprlol purlol luprol ulprol lpurol plurol uplrol pulrol oluprl louprl oulprl uolprl luoprl uloprl olpurl lopurl oplurl polurl lpourl plourl ouplrl uoplrl opulrl poulrl upolrl puolrl luporl ulporl lpuorl pluorl uplorl pulorl rolupl orlupl rloupl lroupl olrupl lorupl roulpl orulpl ruolpl urolpl ourlpl uorlpl rluopl lruopl rulopl urlopl luropl ulropl olurpl lourpl oulrpl uolrpl luorpl ulorpl rolpul orlpul rlopul lropul olrpul lorpul roplul orplul rpolul prolul oprlul porlul rlpoul lrpoul rploul prloul lproul plroul olprul loprul oplrul polrul lporul plorul roupll orupll ruopll uropll ourpll uorpll ropull orpull rpoull proull oprull porull rupoll urpoll rpuoll pruoll uproll puroll ouprll uoprll opurll pourll uporll puorll rlupol lrupol rulpol urlpol lurpol ulrpol rlpuol lrpuol rpluol prluol lpruol plruol ruplol urplol rpulol prulol uprlol purlol luprol ulprol lpurol plurol uplrol pulrol oluprl louprl oulprl uolprl luoprl uloprl olpurl lopurl oplurl polurl lpourl plourl ouplrl uoplrl opulrl poulrl upolrl puolrl luporl ulporl lpuorl pluorl uplorl pulorl rllupo lrlupo rllupo lrlupo llrupo llrupo rlulpo lrulpo rullpo urllpo lurlpo ulrlpo rlulpo lrulpo rullpo urllpo lurlpo ulrlpo llurpo llurpo lulrpo ullrpo lulrpo ullrpo rllpuo lrlpuo rllpuo lrlpuo llrpuo llrpuo rlpluo lrpluo rplluo prlluo lprluo plrluo rlpluo lrpluo rplluo prlluo lprluo plrluo llpruo llpruo lplruo pllruo lplruo pllruo rluplo lruplo rulplo urlplo lurplo ulrplo rlpulo lrpulo rplulo prlulo lprulo plrulo rupllo urpllo rpullo prullo uprllo purllo luprlo ulprlo lpurlo plurlo uplrlo pulrlo rluplo lruplo rulplo urlplo lurplo ulrplo rlpulo lrpulo rplulo prlulo lprulo plrulo rupllo urpllo rpullo prullo uprllo purllo luprlo ulprlo lpurlo plurlo uplrlo pulrlo llupro llupro lulpro ullpro lulpro ullpro llpuro llpuro lpluro plluro lpluro plluro luplro ulplro lpulro plulro upllro pullro luplro ulplro lpulro plulro upllro pullro ollupr lolupr ollupr lolupr lloupr lloupr olulpr loulpr oullpr uollpr luolpr ulolpr olulpr loulpr oullpr uollpr luolpr ulolpr lluopr lluopr lulopr ullopr lulopr ullopr ollpur lolpur ollpur lolpur llopur llopur olplur loplur opllur pollur lpolur plolur olplur loplur opllur pollur lpolur plolur llpour llpour lplour pllour lplour pllour oluplr louplr oulplr uolplr luoplr uloplr olpulr lopulr oplulr polulr lpoulr ploulr oupllr uopllr opullr poullr upollr puollr lupolr ulpolr lpuolr pluolr uplolr pulolr oluplr louplr oulplr uolplr luoplr uloplr olpulr lopulr oplulr polulr lpoulr ploulr oupllr uopllr opullr poullr upollr puollr lupolr ulpolr lpuolr pluolr uplolr pulolr llupor llupor lulpor ullpor lulpor ullpor llpuor llpuor lpluor plluor lpluor plluor luplor ulplor lpulor plulor upllor pullor luplor ulplor lpulor plulor upllor pullor
Note: these 'words' (valid or invalid) are all the permutations of the word rollup. These words are obtained by scrambling the letters in rollup.