c-cor ccccc cccii cciii chich chico chiho chio- chir- chiri chiro chirr choco choor chor- choro chric cicho circo ciric cirio cirr- cirri cirro co-co cocc- cocci cocco cocio cocir cohoo coiro cooch corio coro- coroi corri crich crio- croci croco h-cho hcooh hhhhh hi-hi hirch hiroi hiroo ho-ho ho-oh hocco hochi hooch hoori horch horii horio horro hroch ichhi ichor icici iiiii ioooi ioooo iorio ircii irico irori occii ochro oh-oh ohchr ohrio oichi ooioo ooooh ooooo oroch oroco r-co- rcirc ricci ricco richi richo ricoh riich rioch ro-ro rocco rocio rocor rohci rohri roohi roric