marka amrka mraka rmaka armka ramka makra amkra mkara kmara akmra kamra mrkaa rmkaa mkraa kmraa rkmaa krmaa arkma rakma akrma karma rkama krama marak amrak mraak rmaak armak ramak maark amark maark amark aamrk aamrk mraak rmaak marak amrak ramak armak aramk raamk aarmk aarmk raamk aramk makar amkar mkaar kmaar akmar kamar maakr amakr maakr amakr aamkr aamkr mkaar kmaar makar amkar kamar akmar akamr kaamr aakmr aakmr kaamr akamr mrkaa rmkaa mkraa kmraa rkmaa krmaa mraka rmaka marka amrka ramka armka mkara kmara makra amkra kamra akmra rkama krama rakma arkma karma akrma arkam rakam akram karam rkaam kraam arakm raakm aarkm aarkm raakm arakm akarm kaarm aakrm aakrm kaarm akarm rkaam kraam rakam arkam karam akram
Note: these 'words' (valid or invalid) are all the permutations of the word marka. These words are obtained by scrambling the letters in marka.