hhhhh ho-ho ho-oh homo- honno honor hoorn hopon hoppo horno horom horon horro hrmph mhorr mmhmm mmmmm mohon mohor monno mono- monon monor monro moorn mooro mormo moron morop moror morph morro mrmom mrorr n-p-n nnooo no-no no-op nohno nohom nohor nommo nomo- nomom nonno nonoh nonop norm- noron norro oh-oh ohmmm ohorn omoon omoro omron onoon onorn onpop oomph ooooh ooooo opoho oppon ornon oromo orono p-n-p phnom phon- phono phorm phrop po-on po-po pomor ponor poopo popon popop poppo porn- porno poro- poron porro prohn promo proor prop- propn propp propr rhoon rmnmn ro-ro romon rompo ronno rprop