parka aprka praka rpaka arpka rapka pakra apkra pkara kpara akpra kapra prkaa rpkaa pkraa kpraa rkpaa krpaa arkpa rakpa akrpa karpa rkapa krapa parak aprak praak rpaak arpak rapak paark apark paark apark aaprk aaprk praak rpaak parak aprak rapak arpak arapk raapk aarpk aarpk raapk arapk pakar apkar pkaar kpaar akpar kapar paakr apakr paakr apakr aapkr aapkr pkaar kpaar pakar apkar kapar akpar akapr kaapr aakpr aakpr kaapr akapr prkaa rpkaa pkraa kpraa rkpaa krpaa praka rpaka parka aprka rapka arpka pkara kpara pakra apkra kapra akpra rkapa krapa rakpa arkpa karpa akrpa arkap rakap akrap karap rkaap kraap arakp raakp aarkp aarkp raakp arakp akarp kaarp aakrp aakrp kaarp akarp rkaap kraap rakap arkap karap akrap
Note: these 'words' (valid or invalid) are all the permutations of the word parka. These words are obtained by scrambling the letters in parka.