bbbbbb bhookh bo-hoo bogong bohunk bonbon bonguh bonobo bonogh bonogo booboo boohoo boubou bougon bougou boukou bounou bubong bububu bugbug bugong buk-gu g-book gobbon goboon goboun gohook gokkun gongbo gongbu gonogo googoo gubbon gubgub gugong gungho gunong gunung hobnob hogong hohoho honghu hoohoo hoonko hubbub huboon hububb huh-uh hukkok hungon huoguo khokon khonuu kobogo koboko kobong kohoku kokkoh kokoku kokong kokoon kokoun kokubo kookoo koubou koukou kubong ngongo nkonko nobuko non-no nonkon nonono nonoon noonoo nounou nuh-uh nukkuu nukunu o-hook o-knon o-kung obokun obongo ogongo ohnono ohohoh okongo onbook onhuno oohooh oooooo ubongo ubungo uh-huh unbook unbung ungogo unh-uh unhook unhung unhunh