rihca irhca rhica hrica ihrca hirca richa ircha rciha criha icrha cirha rhcia hrcia rchia crhia hcria chria ihcra hicra ichra cihra hcira chira rihac irhac rhiac hriac ihrac hirac riahc irahc raihc arihc iarhc airhc rhaic hraic rahic arhic haric ahric iharc hiarc iahrc aihrc hairc ahirc ricah ircah rciah criah icrah cirah riach irach raich arich iarch airch rcaih craih racih arcih carih acrih icarh ciarh iacrh aicrh cairh acirh rhcai hrcai rchai crhai hcrai chrai rhaci hraci rahci arhci harci ahrci rcahi crahi rachi archi carhi acrhi hcari chari hacri ahcri cahri achri ihcar hicar ichar cihar hciar chiar ihacr hiacr iahcr aihcr haicr ahicr icahr ciahr iachr aichr caihr acihr hcair chair hacir ahcir cahir achir
Note: these 'words' (valid or invalid) are all the permutations of the word rihca. These words are obtained by scrambling the letters in rihca.