dddd dedd dede dedo deed deef deek defe deff defo dek- deke dfoe dod- dodd dode dodo doek doff doke doko dood doof dook edde eddo ede- edod eede eeee eefe eeke efeo efke eked ekek eode f--k fede feed feek fefe feff fefo feke feko feod feof ffee ffff fode foed fofo foke food foof fook kddd kddf kddk kdef kdfo kdkd kdkk kdko kdoe kdok kedd kede kedo keed keef keek keff keke keko keok kfed kfff kffk kfok kfoo kkdd kkdo kked kkkk kkoo kode kodk kodo koed kofe koff kofk kofo koke kokf kokk koko kook kooo o-eo oddd oded odeo odoo oedo ofek off- offe offo oked okko okok ooff oooo