beech ebech beech ebech eebch eebch beceh ebceh bceeh cbeeh ecbeh cebeh beceh ebceh bceeh cbeeh ecbeh cebeh eecbh eecbh ecebh ceebh ecebh ceebh beehc ebehc beehc ebehc eebhc eebhc behec ebhec bheec hbeec ehbec hebec behec ebhec bheec hbeec ehbec hebec eehbc eehbc ehebc heebc ehebc heebc beche ebche bcehe cbehe ecbhe cebhe behce ebhce bhece hbece ehbce hebce bchee cbhee bhcee hbcee chbee hcbee echbe cehbe ehcbe hecbe chebe hcebe beche ebche bcehe cbehe ecbhe cebhe behce ebhce bhece hbece ehbce hebce bchee cbhee bhcee hbcee chbee hcbee echbe cehbe ehcbe hecbe chebe hcebe eechb eechb ecehb ceehb ecehb ceehb eehcb eehcb ehecb heecb ehecb heecb echeb ceheb ehceb heceb cheeb hceeb echeb ceheb ehceb heceb cheeb hceeb
Note: these 'words' (valid or invalid) are all the permutations of the word beech. These words are obtained by scrambling the letters in beech.