crihb rcihb cirhb icrhb richb irchb crhib rchib chrib hcrib rhcib hrcib cihrb ichrb chirb hcirb ihcrb hicrb rihcb irhcb rhicb hricb ihrcb hircb cribh rcibh cirbh icrbh ricbh ircbh crbih rcbih cbrih bcrih rbcih brcih cibrh icbrh cbirh bcirh ibcrh bicrh ribch irbch rbich brich ibrch birch crhbi rchbi chrbi hcrbi rhcbi hrcbi crbhi rcbhi cbrhi bcrhi rbchi brchi chbri hcbri cbhri bchri hbcri bhcri rhbci hrbci rbhci brhci hbrci bhrci cihbr ichbr chibr hcibr ihcbr hicbr cibhr icbhr cbihr bcihr ibchr bichr chbir hcbir cbhir bchir hbcir bhcir ihbcr hibcr ibhcr bihcr hbicr bhicr rihbc irhbc rhibc hribc ihrbc hirbc ribhc irbhc rbihc brihc ibrhc birhc rhbic hrbic rbhic brhic hbric bhric ihbrc hibrc ibhrc bihrc hbirc bhirc
Note: these 'words' (valid or invalid) are all the permutations of the word crihb. These words are obtained by scrambling the letters in crihb.