afanc faanc aafnc aafnc faanc afanc afnac fanac anfac nafac fnaac nfaac aanfc aanfc anafc naafc anafc naafc fanac afnac fnaac nfaac anfac nafac afacn faacn aafcn aafcn faacn afacn afcan facan acfan cafan fcaan cfaan aacfn aacfn acafn caafn acafn caafn facan afcan fcaan cfaan acfan cafan afnca fanca anfca nafca fnaca nfaca afcna facna acfna cafna fcana cfana ancfa nacfa acnfa canfa ncafa cnafa fncaa nfcaa fcnaa cfnaa ncfaa cnfaa aancf aancf anacf naacf anacf naacf aacnf aacnf acanf caanf acanf caanf ancaf nacaf acnaf canaf ncaaf cnaaf ancaf nacaf acnaf canaf ncaaf cnaaf fanca afnca fnaca nfaca anfca nafca facna afcna fcana cfana acfna cafna fncaa nfcaa fcnaa cfnaa ncfaa cnfaa ancfa nacfa acnfa canfa ncafa cnafa
Note: these 'words' (valid or invalid) are all the permutations of the word afanc. These words are obtained by scrambling the letters in afanc.