prills rpills pirlls iprlls riplls irplls prlils rplils plrils lprils rlpils lrpils pilrls iplrls plirls lpirls ilprls liprls rilpls irlpls rlipls lripls ilrpls lirpls prills rpills pirlls iprlls riplls irplls prlils rplils plrils lprils rlpils lrpils pilrls iplrls plirls lpirls ilprls liprls rilpls irlpls rlipls lripls ilrpls lirpls prllis rpllis plrlis lprlis rlplis lrplis prllis rpllis plrlis lprlis rlplis lrplis pllris lplris pllris lplris llpris llpris rllpis lrlpis rllpis lrlpis llrpis llrpis pillrs ipllrs plilrs lpilrs ilplrs liplrs pillrs ipllrs plilrs lpilrs ilplrs liplrs pllirs lplirs pllirs lplirs llpirs llpirs illprs lilprs illprs lilprs lliprs lliprs rillps irllps rlilps lrilps ilrlps lirlps rillps irllps rlilps lrilps ilrlps lirlps rllips lrlips rllips lrlips llrips llrips illrps lilrps illrps lilrps llirps llirps prilsl rpilsl pirlsl iprlsl riplsl irplsl prlisl rplisl plrisl lprisl rlpisl lrpisl pilrsl iplrsl plirsl lpirsl ilprsl liprsl rilpsl irlpsl rlipsl lripsl ilrpsl lirpsl prisll rpisll pirsll iprsll ripsll irpsll prsill rpsill psrill sprill rspill srpill pisrll ipsrll psirll spirll isprll siprll rispll irspll rsipll sripll isrpll sirpll prlsil rplsil plrsil lprsil rlpsil lrpsil prslil rpslil psrlil sprlil rsplil srplil plsril lpsril pslril splril lspril slpril rlspil lrspil rslpil srlpil lsrpil slrpil pilsrl iplsrl plisrl lpisrl ilpsrl lipsrl pislrl ipslrl psilrl spilrl isplrl siplrl plsirl lpsirl pslirl splirl lspirl slpirl ilsprl lisprl islprl silprl lsiprl sliprl rilspl irlspl rlispl lrispl ilrspl lirspl rislpl irslpl rsilpl srilpl isrlpl sirlpl rlsipl lrsipl rslipl srlipl lsripl slripl ilsrpl lisrpl islrpl silrpl lsirpl slirpl prilsl rpilsl pirlsl iprlsl riplsl irplsl prlisl rplisl plrisl lprisl rlpisl lrpisl pilrsl iplrsl plirsl lpirsl ilprsl liprsl rilpsl irlpsl rlipsl lripsl ilrpsl lirpsl prisll rpisll pirsll iprsll ripsll irpsll prsill rpsill psrill sprill rspill srpill pisrll ipsrll psirll spirll isprll siprll rispll irspll rsipll sripll isrpll sirpll prlsil rplsil plrsil lprsil rlpsil lrpsil prslil rpslil psrlil sprlil rsplil srplil plsril lpsril pslril splril lspril slpril rlspil lrspil rslpil srlpil lsrpil slrpil pilsrl iplsrl plisrl lpisrl ilpsrl lipsrl pislrl ipslrl psilrl spilrl isplrl siplrl plsirl lpsirl pslirl splirl lspirl slpirl ilsprl lisprl islprl silprl lsiprl sliprl rilspl irlspl rlispl lrispl ilrspl lirspl rislpl irslpl rsilpl srilpl isrlpl sirlpl rlsipl lrsipl rslipl srlipl lsripl slripl ilsrpl lisrpl islrpl silrpl lsirpl slirpl prllsi rpllsi plrlsi lprlsi rlplsi lrplsi prllsi rpllsi plrlsi lprlsi rlplsi lrplsi pllrsi lplrsi pllrsi lplrsi llprsi llprsi rllpsi lrlpsi rllpsi lrlpsi llrpsi llrpsi prlsli rplsli plrsli lprsli rlpsli lrpsli prslli rpslli psrlli sprlli rsplli srplli plsrli lpsrli pslrli splrli lsprli slprli rlspli lrspli rslpli srlpli lsrpli slrpli prlsli rplsli plrsli lprsli rlpsli lrpsli prslli rpslli psrlli sprlli rsplli srplli plsrli lpsrli pslrli splrli lsprli slprli rlspli lrspli rslpli srlpli lsrpli slrpli pllsri lplsri pllsri lplsri llpsri llpsri plslri lpslri psllri spllri lsplri slplri plslri lpslri psllri spllri lsplri slplri llspri llspri lslpri sllpri lslpri sllpri rllspi lrlspi rllspi lrlspi llrspi llrspi rlslpi lrslpi rsllpi srllpi lsrlpi slrlpi rlslpi lrslpi rsllpi srllpi lsrlpi slrlpi llsrpi llsrpi lslrpi sllrpi lslrpi sllrpi pillsr ipllsr plilsr lpilsr ilplsr liplsr pillsr ipllsr plilsr lpilsr ilplsr liplsr pllisr lplisr pllisr lplisr llpisr llpisr illpsr lilpsr illpsr lilpsr llipsr llipsr pilslr iplslr plislr lpislr ilpslr lipslr pisllr ipsllr psillr spillr ispllr sipllr plsilr lpsilr pslilr splilr lspilr slpilr ilsplr lisplr islplr silplr lsiplr sliplr pilslr iplslr plislr lpislr ilpslr lipslr pisllr ipsllr psillr spillr ispllr sipllr plsilr lpsilr pslilr splilr lspilr slpilr ilsplr lisplr islplr silplr lsiplr sliplr pllsir lplsir pllsir lplsir llpsir llpsir plslir lpslir psllir spllir lsplir slplir plslir lpslir psllir spllir lsplir slplir llspir llspir lslpir sllpir lslpir sllpir illspr lilspr illspr lilspr llispr llispr ilslpr lislpr isllpr sillpr lsilpr slilpr ilslpr lislpr isllpr sillpr lsilpr slilpr llsipr llsipr lslipr sllipr lslipr sllipr rillsp irllsp rlilsp lrilsp ilrlsp lirlsp rillsp irllsp rlilsp lrilsp ilrlsp lirlsp rllisp lrlisp rllisp lrlisp llrisp llrisp illrsp lilrsp illrsp lilrsp llirsp llirsp rilslp irlslp rlislp lrislp ilrslp lirslp risllp irsllp rsillp srillp isrllp sirllp rlsilp lrsilp rslilp srlilp lsrilp slrilp ilsrlp lisrlp islrlp silrlp lsirlp slirlp rilslp irlslp rlislp lrislp ilrslp lirslp risllp irsllp rsillp srillp isrllp sirllp rlsilp lrsilp rslilp srlilp lsrilp slrilp ilsrlp lisrlp islrlp silrlp lsirlp slirlp rllsip lrlsip rllsip lrlsip llrsip llrsip rlslip lrslip rsllip srllip lsrlip slrlip rlslip lrslip rsllip srllip lsrlip slrlip llsrip llsrip lslrip sllrip lslrip sllrip illsrp lilsrp illsrp lilsrp llisrp llisrp ilslrp lislrp isllrp sillrp lsilrp slilrp ilslrp lislrp isllrp sillrp lsilrp slilrp llsirp llsirp lslirp sllirp lslirp sllirp
Note: these 'words' (valid or invalid) are all the permutations of the word prills. These words are obtained by scrambling the letters in prills.