xatco axtco xtaco txaco atxco taxco xacto axcto xcato cxato acxto caxto xtcao txcao xctao cxtao tcxao ctxao atcxo tacxo actxo catxo tcaxo ctaxo xatoc axtoc xtaoc txaoc atxoc taxoc xaotc axotc xoatc oxatc aoxtc oaxtc xtoac txoac xotac oxtac toxac otxac atoxc taoxc aotxc oatxc toaxc otaxc xacot axcot xcaot cxaot acxot caxot xaoct axoct xoact oxact aoxct oaxct xcoat cxoat xocat oxcat coxat ocxat acoxt caoxt aocxt oacxt coaxt ocaxt xtcoa txcoa xctoa cxtoa tcxoa ctxoa xtoca txoca xotca oxtca toxca otxca xcota cxota xocta oxcta coxta ocxta tcoxa ctoxa tocxa otcxa cotxa octxa atcox tacox actox catox tcaox ctaox atocx taocx aotcx oatcx toacx otacx acotx caotx aoctx oactx coatx ocatx tcoax ctoax tocax otcax cotax octax
Note: these 'words' (valid or invalid) are all the permutations of the word xatco. These words are obtained by scrambling the letters in xatco.