rakis arkis rkais krais akris karis raiks ariks riaks iraks airks iarks rkias krias rikas irkas kiras ikras akirs kairs aikrs iakrs kiars ikars raksi arksi rkasi krasi akrsi karsi raski arski rsaki sraki asrki sarki rksai krsai rskai srkai ksrai skrai aksri kasri askri sakri ksari skari raisk arisk riask irask airsk iarsk rasik arsik rsaik sraik asrik sarik risak irsak rsiak sriak israk sirak aisrk iasrk asirk sairk isark siark rkisa krisa riksa irksa kirsa ikrsa rksia krsia rskia srkia ksria skria riska irska rsika srika isrka sirka kisra iksra ksira skira iskra sikra akisr kaisr aiksr iaksr kiasr ikasr aksir kasir askir sakir ksair skair aiskr iaskr asikr saikr isakr siakr kisar iksar ksiar skiar iskar sikar
Note: these 'words' (valid or invalid) are all the permutations of the word rakis. These words are obtained by scrambling the letters in rakis.