a-be a-ha aaaa aaab aaae aaah aaba aabb aabh aaea aaha aaoe aaoo abaa abab abae abaj abb- abba abbb abbe abbo abee abha abho aboa abob aboh aboo ahab ahah ahha ahja ahoa ahoe ajab ajah ajao ajba ajee ajob ajoo aoah aoba baaa baah baba babb babe babo baha baho baja baoh bbbb bbeb beah beba bebb bebe bebo beeb beej beja beo- bhao bjoa boab boba bobb bobe bobo boea boee boeo boha boho bojo boob booe booh eaba eabh ebba ebbo eboe eboo eeea eeee ehaa ehea eheh ejob ejoo haab haba habe habo haha haho haja haje hajj hajo heah hebb hebe hebo heeb hehe heho hhaa hhhh hoba hobe hobo hoha hohe hoho hoja hoje hojo hooe jaba jabo jaha jaja jbaa jbob jeah jebb jebe joab joah joao joba jobe jobo joea joee joha joho jojo o-eo oahe obba obbo obea obja oboe ohba ohbe ohee ohho ohob ohoh ojea ojeh ojha ooaa ooba oobe ooha ooho oooh oooo