krnda rknda knrda nkrda rnkda nrkda krdna rkdna kdrna dkrna rdkna drkna kndra nkdra kdnra dknra ndkra dnkra rndka nrdka rdnka drnka ndrka dnrka krnad rknad knrad nkrad rnkad nrkad krand rkand karnd akrnd raknd arknd knard nkard kanrd aknrd nakrd ankrd rnakd nrakd rankd arnkd narkd anrkd krdan rkdan kdran dkran rdkan drkan kradn rkadn kardn akrdn rakdn arkdn kdarn dkarn kadrn akdrn dakrn adkrn rdakn drakn radkn ardkn darkn adrkn kndar nkdar kdnar dknar ndkar dnkar knadr nkadr kandr akndr nakdr ankdr kdanr dkanr kadnr akdnr daknr adknr ndakr dnakr nadkr andkr dankr adnkr rndak nrdak rdnak drnak ndrak dnrak rnadk nradk randk arndk nardk anrdk rdank drank radnk ardnk darnk adrnk ndark dnark nadrk andrk danrk adnrk
Note: these 'words' (valid or invalid) are all the permutations of the word krnda. These words are obtained by scrambling the letters in krnda.