chrey hcrey crhey rchey hrcey rhcey chery hcery cehry echry hecry ehcry crehy rcehy cerhy ecrhy rechy erchy hrecy rhecy hercy ehrcy rehcy erhcy chrye hcrye crhye rchye hrcye rhcye chyre hcyre cyhre ychre hycre yhcre cryhe rcyhe cyrhe ycrhe ryche yrche hryce rhyce hyrce yhrce ryhce yrhce cheyr hceyr cehyr echyr hecyr ehcyr chyer hcyer cyher ycher hycer yhcer ceyhr ecyhr cyehr ycehr eychr yechr heycr ehycr hyecr yhecr eyhcr yehcr creyh rceyh ceryh ecryh recyh ercyh cryeh rcyeh cyreh ycreh ryceh yrceh ceyrh ecyrh cyerh ycerh eycrh yecrh reych erych ryech yrech eyrch yerch hreyc rheyc heryc ehryc rehyc erhyc hryec rhyec hyrec yhrec ryhec yrhec heyrc ehyrc hyerc yherc eyhrc yehrc reyhc eryhc ryehc yrehc eyrhc yerhc
Note: these 'words' (valid or invalid) are all the permutations of the word chrey. These words are obtained by scrambling the letters in chrey.