c-cor ccccc cech ceche ceco- ceere ceoce ceoor cerc- cerce cerco cerec cerer cero- ceroc cerre cerro chech cheer cheho chehr cheo chere chero chexo chher choco choor chor- chore choro co-co cocc- cocce cocco coceo coche cohee cohoe cohoo cooch cooee cooer coore corce core- coree corer corex coro- corre crece creer creo- croce croco crooe crore eccho eeeee eocho eorre erech erere eroor erore error execx exhex exore h-cho hcooh he-he he-ro hecco heche heere heore herce heroe herre herro hexer hhhhh ho-ho ho-oh hocco hoche hohoe hooce hooch hooer hoore horce horch horex horhe horre horro hreoc hrere hroch ocher ochre ochro ocoee ocree oeco- oh-oh ohchr oo-er oocre ooher ooooh ooooo orech oreco oreo- orere orero orexo oroch oroco oroer r-co- recce recco reche reece reech reere reerh rehco reher rehoe reorx rere- reree rexer rheo- rhoeo ro-ro rocco roche rocor roero rooer roore rorer xero- xerox xexex xorro xoxox