replan erplan rpelan prelan eprlan perlan relpan erlpan rlepan lrepan elrpan lerpan rplean prlean rlpean lrpean plrean lprean eplran pelran elpran lepran pleran lperan repaln erpaln rpealn prealn epraln peraln reapln erapln raepln arepln earpln aerpln rpaeln praeln rapeln arpeln pareln apreln eparln pearln eaprln aeprln paerln aperln relapn erlapn rleapn lreapn elrapn lerapn realpn eralpn raelpn arelpn earlpn aerlpn rlaepn lraepn ralepn arlepn larepn alrepn elarpn learpn ealrpn aelrpn laerpn alerpn rplaen prlaen rlpaen lrpaen plraen lpraen rpalen pralen raplen arplen parlen aprlen rlapen lrapen ralpen arlpen larpen alrpen plaren lparen palren aplren lapren alpren eplarn pelarn elparn leparn plearn lpearn epalrn pealrn eaplrn aeplrn paelrn apelrn elaprn leaprn ealprn aelprn laeprn aleprn plaern lpaern palern aplern lapern alpern replna erplna rpelna prelna eprlna perlna relpna erlpna rlepna lrepna elrpna lerpna rplena prlena rlpena lrpena plrena lprena eplrna pelrna elprna leprna plerna lperna repnla erpnla rpenla prenla eprnla pernla renpla ernpla rnepla nrepla enrpla nerpla rpnela prnela rnpela nrpela pnrela nprela epnrla penrla enprla neprla pnerla nperla relnpa erlnpa rlenpa lrenpa elrnpa lernpa renlpa ernlpa rnelpa nrelpa enrlpa nerlpa rlnepa lrnepa rnlepa nrlepa lnrepa nlrepa elnrpa lenrpa enlrpa nelrpa lnerpa nlerpa rplnea prlnea rlpnea lrpnea plrnea lprnea rpnlea prnlea rnplea nrplea pnrlea nprlea rlnpea lrnpea rnlpea nrlpea lnrpea nlrpea plnrea lpnrea pnlrea nplrea lnprea nlprea eplnra pelnra elpnra lepnra plenra lpenra epnlra penlra enplra neplra pnelra npelra elnpra lenpra enlpra nelpra lnepra nlepra plnera lpnera pnlera nplera lnpera nlpera repanl erpanl rpeanl preanl epranl peranl reapnl erapnl raepnl arepnl earpnl aerpnl rpaenl praenl rapenl arpenl parenl aprenl eparnl pearnl eaprnl aeprnl paernl apernl repnal erpnal rpenal prenal eprnal pernal renpal ernpal rnepal nrepal enrpal nerpal rpneal prneal rnpeal nrpeal pnreal npreal epnral penral enpral nepral pneral nperal reanpl eranpl raenpl arenpl earnpl aernpl renapl ernapl rneapl nreapl enrapl nerapl ranepl arnepl rnaepl nraepl anrepl narepl eanrpl aenrpl enarpl nearpl anerpl naerpl rpanel pranel rapnel arpnel parnel aprnel rpnael prnael rnpael nrpael pnrael nprael ranpel arnpel rnapel nrapel anrpel narpel panrel apnrel pnarel nparel anprel naprel epanrl peanrl eapnrl aepnrl paenrl apenrl epnarl penarl enparl neparl pnearl npearl eanprl aenprl enaprl neaprl aneprl naeprl panerl apnerl pnaerl npaerl anperl naperl relanp erlanp rleanp lreanp elranp leranp realnp eralnp raelnp arelnp earlnp aerlnp rlaenp lraenp ralenp arlenp larenp alrenp elarnp learnp ealrnp aelrnp laernp alernp relnap erlnap rlenap lrenap elrnap lernap renlap ernlap rnelap nrelap enrlap nerlap rlneap lrneap rnleap nrleap lnreap nlreap elnrap lenrap enlrap nelrap lnerap nlerap reanlp eranlp raenlp arenlp earnlp aernlp renalp ernalp rnealp nrealp enralp neralp ranelp arnelp rnaelp nraelp anrelp narelp eanrlp aenrlp enarlp nearlp anerlp naerlp rlanep lranep ralnep arlnep larnep alrnep rlnaep lrnaep rnlaep nrlaep lnraep nlraep ranlep arnlep rnalep nralep anrlep narlep lanrep alnrep lnarep nlarep anlrep nalrep elanrp leanrp ealnrp aelnrp laenrp alenrp elnarp lenarp enlarp nelarp lnearp nlearp eanlrp aenlrp enalrp nealrp anelrp naelrp lanerp alnerp lnaerp nlaerp anlerp nalerp rplane prlane rlpane lrpane plrane lprane rpalne pralne raplne arplne parlne aprlne rlapne lrapne ralpne arlpne larpne alrpne plarne lparne palrne aplrne laprne alprne rplnae prlnae rlpnae lrpnae plrnae lprnae rpnlae prnlae rnplae nrplae pnrlae nprlae rlnpae lrnpae rnlpae nrlpae lnrpae nlrpae plnrae lpnrae pnlrae nplrae lnprae nlprae rpanle pranle rapnle arpnle parnle aprnle rpnale prnale rnpale nrpale pnrale nprale ranple arnple rnaple nraple anrple narple panrle apnrle pnarle nparle anprle naprle rlanpe lranpe ralnpe arlnpe larnpe alrnpe rlnape lrnape rnlape nrlape lnrape nlrape ranlpe arnlpe rnalpe nralpe anrlpe narlpe lanrpe alnrpe lnarpe nlarpe anlrpe nalrpe planre lpanre palnre aplnre lapnre alpnre plnare lpnare pnlare nplare lnpare nlpare panlre apnlre pnalre npalre anplre naplre lanpre alnpre lnapre nlapre anlpre nalpre eplanr pelanr elpanr lepanr pleanr lpeanr epalnr pealnr eaplnr aeplnr paelnr apelnr elapnr leapnr ealpnr aelpnr laepnr alepnr plaenr lpaenr palenr aplenr lapenr alpenr eplnar pelnar elpnar lepnar plenar lpenar epnlar penlar enplar neplar pnelar npelar elnpar lenpar enlpar nelpar lnepar nlepar plnear lpnear pnlear nplear lnpear nlpear epanlr peanlr eapnlr aepnlr paenlr apenlr epnalr penalr enpalr nepalr pnealr npealr eanplr aenplr enaplr neaplr aneplr naeplr panelr apnelr pnaelr npaelr anpelr napelr elanpr leanpr ealnpr aelnpr laenpr alenpr elnapr lenapr enlapr nelapr lneapr nleapr eanlpr aenlpr enalpr nealpr anelpr naelpr lanepr alnepr lnaepr nlaepr anlepr nalepr planer lpaner palner aplner lapner alpner plnaer lpnaer pnlaer nplaer lnpaer nlpaer panler apnler pnaler npaler anpler napler lanper alnper lnaper nlaper anlper nalper
Note: these 'words' (valid or invalid) are all the permutations of the word replan. These words are obtained by scrambling the letters in replan.