bnhra nbhra bhnra hbnra nhbra hnbra bnrha nbrha brnha rbnha nrbha rnbha bhrna hbrna brhna rbhna hrbna rhbna nhrba hnrba nrhba rnhba hrnba rhnba bnhar nbhar bhnar hbnar nhbar hnbar bnahr nbahr banhr abnhr nabhr anbhr bhanr hbanr bahnr abhnr habnr ahbnr nhabr hnabr nahbr anhbr hanbr ahnbr bnrah nbrah brnah rbnah nrbah rnbah bnarh nbarh banrh abnrh nabrh anbrh branh rbanh barnh abrnh rabnh arbnh nrabh rnabh narbh anrbh ranbh arnbh bhran hbran brhan rbhan hrban rhban bharn hbarn bahrn abhrn habrn ahbrn brahn rbahn barhn abrhn rabhn arbhn hrabn rhabn harbn ahrbn rahbn arhbn nhrab hnrab nrhab rnhab hrnab rhnab nharb hnarb nahrb anhrb hanrb ahnrb nrahb rnahb narhb anrhb ranhb arnhb hranb rhanb harnb ahrnb rahnb arhnb
Note: these 'words' (valid or invalid) are all the permutations of the word bnhra. These words are obtained by scrambling the letters in bnhra.