portal oprtal protal rpotal orptal roptal potral optral ptoral tporal otpral topral prtoal rptoal ptroal tproal rtpoal trpoal ortpal rotpal otrpal torpal rtopal tropal poratl opratl proatl rpoatl orpatl ropatl poartl opartl paortl aportl oaprtl aoprtl praotl rpaotl parotl aprotl rapotl arpotl oraptl roaptl oarptl aorptl raoptl aroptl potarl optarl ptoarl tpoarl otparl toparl poatrl opatrl paotrl apotrl oaptrl aoptrl ptaorl tpaorl patorl aptorl taporl atporl otaprl toaprl oatprl aotprl taoprl atoprl prtaol rptaol ptraol tpraol rtpaol trpaol pratol rpatol partol aprtol raptol arptol ptarol tparol patrol aptrol taprol atprol rtapol trapol ratpol artpol tarpol atrpol ortapl rotapl otrapl torapl rtoapl troapl oratpl roatpl oartpl aortpl raotpl arotpl otarpl toarpl oatrpl aotrpl taorpl atorpl rtaopl traopl ratopl artopl taropl atropl portla oprtla protla rpotla orptla roptla potrla optrla ptorla tporla otprla toprla prtola rptola ptrola tprola rtpola trpola ortpla rotpla otrpla torpla rtopla tropla porlta oprlta prolta rpolta orplta roplta polrta oplrta plorta lporta olprta loprta prlota rplota plrota lprota rlpota lrpota orlpta rolpta olrpta lorpta rlopta lropta potlra optlra ptolra tpolra otplra toplra poltra opltra plotra lpotra olptra loptra ptlora tplora pltora lptora tlpora ltpora otlpra tolpra oltpra lotpra tlopra ltopra prtloa rptloa ptrloa tprloa rtploa trploa prltoa rpltoa plrtoa lprtoa rlptoa lrptoa ptlroa tplroa pltroa lptroa tlproa ltproa rtlpoa trlpoa rltpoa lrtpoa tlrpoa ltrpoa ortlpa rotlpa otrlpa torlpa rtolpa trolpa orltpa roltpa olrtpa lortpa rlotpa lrotpa otlrpa tolrpa oltrpa lotrpa tlorpa ltorpa rtlopa trlopa rltopa lrtopa tlropa ltropa poralt opralt proalt rpoalt orpalt ropalt poarlt oparlt paorlt aporlt oaprlt aoprlt praolt rpaolt parolt aprolt rapolt arpolt oraplt roaplt oarplt aorplt raoplt aroplt porlat oprlat prolat rpolat orplat roplat polrat oplrat plorat lporat olprat loprat prloat rploat plroat lproat rlpoat lrpoat orlpat rolpat olrpat lorpat rlopat lropat poalrt opalrt paolrt apolrt oaplrt aoplrt polart oplart ploart lpoart olpart lopart palort aplort plaort lpaort alport laport oalprt aolprt olaprt loaprt aloprt laoprt pralot rpalot parlot aprlot raplot arplot prlaot rplaot plraot lpraot rlpaot lrpaot palrot aplrot plarot lparot alprot laprot ralpot arlpot rlapot lrapot alrpot larpot oralpt roalpt oarlpt aorlpt raolpt arolpt orlapt rolapt olrapt lorapt rloapt lroapt oalrpt aolrpt olarpt loarpt alorpt laorpt ralopt arlopt rlaopt lraopt alropt laropt potalr optalr ptoalr tpoalr otpalr topalr poatlr opatlr paotlr apotlr oaptlr aoptlr ptaolr tpaolr patolr aptolr tapolr atpolr otaplr toaplr oatplr aotplr taoplr atoplr potlar optlar ptolar tpolar otplar toplar poltar opltar plotar lpotar olptar loptar ptloar tploar pltoar lptoar tlpoar ltpoar otlpar tolpar oltpar lotpar tlopar ltopar poaltr opaltr paoltr apoltr oapltr aopltr polatr oplatr ploatr lpoatr olpatr lopatr palotr aplotr plaotr lpaotr alpotr lapotr oalptr aolptr olaptr loaptr aloptr laoptr ptalor tpalor patlor aptlor taplor atplor ptlaor tplaor pltaor lptaor tlpaor ltpaor paltor apltor plator lpator alptor laptor talpor atlpor tlapor ltapor altpor latpor otalpr toalpr oatlpr aotlpr taolpr atolpr otlapr tolapr oltapr lotapr tloapr ltoapr oaltpr aoltpr olatpr loatpr alotpr laotpr talopr atlopr tlaopr ltaopr altopr latopr prtalo rptalo ptralo tpralo rtpalo trpalo pratlo rpatlo partlo aprtlo raptlo arptlo ptarlo tparlo patrlo aptrlo taprlo atprlo rtaplo traplo ratplo artplo tarplo atrplo prtlao rptlao ptrlao tprlao rtplao trplao prltao rpltao plrtao lprtao rlptao lrptao ptlrao tplrao pltrao lptrao tlprao ltprao rtlpao trlpao rltpao lrtpao tlrpao ltrpao pralto rpalto parlto aprlto raplto arplto prlato rplato plrato lprato rlpato lrpato palrto aplrto plarto lparto alprto laprto ralpto arlpto rlapto lrapto alrpto larpto ptalro tpalro patlro aptlro taplro atplro ptlaro tplaro pltaro lptaro tlparo ltparo paltro apltro platro lpatro alptro laptro talpro atlpro tlapro ltapro altpro latpro rtalpo tralpo ratlpo artlpo tarlpo atrlpo rtlapo trlapo rltapo lrtapo tlrapo ltrapo raltpo arltpo rlatpo lratpo alrtpo lartpo talrpo atlrpo tlarpo ltarpo altrpo latrpo ortalp rotalp otralp toralp rtoalp troalp oratlp roatlp oartlp aortlp raotlp arotlp otarlp toarlp oatrlp aotrlp taorlp atorlp rtaolp traolp ratolp artolp tarolp atrolp ortlap rotlap otrlap torlap rtolap trolap orltap roltap olrtap lortap rlotap lrotap otlrap tolrap oltrap lotrap tlorap ltorap rtloap trloap rltoap lrtoap tlroap ltroap oraltp roaltp oarltp aorltp raoltp aroltp orlatp rolatp olratp loratp rloatp lroatp oalrtp aolrtp olartp loartp alortp laortp ralotp arlotp rlaotp lraotp alrotp larotp otalrp toalrp oatlrp aotlrp taolrp atolrp otlarp tolarp oltarp lotarp tloarp ltoarp oaltrp aoltrp olatrp loatrp alotrp laotrp talorp atlorp tlaorp ltaorp altorp latorp rtalop tralop ratlop artlop tarlop atrlop rtlaop trlaop rltaop lrtaop tlraop ltraop raltop arltop rlatop lratop alrtop lartop talrop atlrop tlarop ltarop altrop latrop
Note: these 'words' (valid or invalid) are all the permutations of the word portal. These words are obtained by scrambling the letters in portal.