japer ajper jpaer pjaer apjer pajer jaepr ajepr jeapr ejapr aejpr eajpr jpear pjear jepar ejpar pejar epjar apejr paejr aepjr eapjr peajr epajr japre ajpre jpare pjare apjre pajre jarpe ajrpe jrape rjape arjpe rajpe jprae pjrae jrpae rjpae prjae rpjae aprje parje arpje rapje praje rpaje jaerp ajerp jearp ejarp aejrp eajrp jarep ajrep jraep rjaep arjep rajep jerap ejrap jreap rjeap erjap rejap aerjp earjp arejp raejp erajp reajp jpera pjera jepra ejpra pejra epjra jprea pjrea jrpea rjpea prjea rpjea jerpa ejrpa jrepa rjepa erjpa rejpa perja eprja preja rpeja erpja repja aperj paerj aeprj eaprj pearj eparj aprej parej arpej rapej praej rpaej aerpj earpj arepj raepj erapj reapj peraj epraj preaj rpeaj erpaj repaj
Note: these 'words' (valid or invalid) are all the permutations of the word japer. These words are obtained by scrambling the letters in japer.