infos nifos ifnos finos nfios fnios inofs niofs ionfs oinfs noifs onifs ifons fions iofns oifns foins ofins nfois fnois nofis onfis fonis ofnis infso nifso ifnso finso nfiso fniso insfo nisfo isnfo sinfo nsifo snifo ifsno fisno isfno sifno fsino sfino nfsio fnsio nsfio snfio fsnio sfnio inosf niosf ionsf oinsf noisf onisf insof nisof isnof sinof nsiof sniof iosnf oisnf isonf sionf osinf soinf nosif onsif nsoif snoif osnif sonif ifosn fiosn iofsn oifsn foisn ofisn ifson fison isfon sifon fsion sfion iosfn oisfn isofn siofn osifn soifn fosin ofsin fsoin sfoin osfin sofin nfosi fnosi nofsi onfsi fonsi ofnsi nfsoi fnsoi nsfoi snfoi fsnoi sfnoi nosfi onsfi nsofi snofi osnfi sonfi fosni ofsni fsoni sfoni osfni sofni
Note: these 'words' (valid or invalid) are all the permutations of the word infos. These words are obtained by scrambling the letters in infos.