d-rod ddddd dhond dhoon dhoop do-do dodon dodoo dodro dohop dohrn dondo donho donon donor doodo doorn dorno doron dpond drood droon droop drop- dropo hhhhh hnrpd ho-ho ho-oh hodhr hodod hondo honno honor hoond hoord hoorn hopon hoppo horno horod horon horro n-p-n nnooo no-do no-no no-op nohno nohor nondo nonno nonoh nonop noord nordo noron norro oh-oh ohorn onond onoon onorn onpop ooooh ooooo oopod opodo opoho oppon ordon ordro ornon orodo orono p-n-p phon- phono phrop po-on po-po podo- podor pondo ponor poond poopo popon popop poppo porn- porno poro- poron porro prodd prohd prohn proor prop- propn propp propr rhod- rhodo rhoon ro-ro rodon rodor rohod rondo ronno roond rprop