c-cor c-p-c c-pop ccccc choco choop choor chor- chord choro co-co co-op cocc- cocco codco codo cohoo cooch coord coppo copr- copro coro- corod corop cphpc croco crodo crood croop cropc cropo d-rod ddddd dhcpd dhoop do-do dodoo dodro dohop doodo dpcch dpdch droch drood droop drop- dropo h-cho hcooh hhhhh ho-ho ho-oh hocco hodhr hodod hooch hoord hoppo horch horod horro hroch ochro oh-oh ohchr ooooh ooooo oopod opdoc opodo opoho orcop ordoc ordro oroch oroco orodo phccc phrop po-po pocho pocop podo- podor pooch poopo popco popop poppo porch porco poro- porro proch prodd prohd proor prop- propp propr r-co- rhod- rhodo rhppc ro-ro rocco rocor rodoc rodor rohod rprop