a-be a-do a-ha aaaa aaab aaad aaae aaah aaba aabb aabd aabh aada aade aaea aaha aaoe aaoo abaa abab abad abae abax abb- abba abbb abbe abbo abda abdo abed abee abha abho aboa abob abod aboh aboo abox adaa adab adad adae adah adao adba adda addd adde addo adea adeb adee adeh adeo adha adhd adho adob adod adoe adoo adox aede ahab ahad ahah ahed ahex ahha ahoa ahod ahoe aoah aoba aodh axed axo- axoa axxo ba-x baaa baad baah baba babb babe babo bada badb badd bade badh bado baed baha baho baoh bbad bbbb bbdd bbdo bbeb bbox bddh bead beah beba bebb bebe bebo beda bede bedo beeb beed beo- beod bhao boab boad boba bobb bobe bobo boda bodb bode bodh bodo boea boee boeo boha bohd boho boob bood booe booh boox boxa d-bo daab daad daae daba dabb dabo dada dade dado daeb daha dahe dddd dead deae deba debe deda dedd dede dedo deeb deed deha dex- dexa dexe dhaa dhad dhao dhed dhee dhod do-x doab doae doba dobb dobe dod- doda dodd dode dodo doea doha doob dood doxa dxab dxbe dxed dxxx eaba eabh eada eadb eadd ebba ebbo ebed eboe eboo ebox edad edah edax edda edde eddo ede- edea edeh edex edod eede eeea eeee ehaa ehdd ehea eheh eode exa- exda exed exh- exo- exod haab haad haba habe habo hada hade hadh haed haha haho haxe haxo hbox hdax hdda hdod head heah hebb hebe hebo heda hedd hede hedo heeb heed hehe heho hex- hexa hexb hexe hhaa hhex hhhh hoad hoax hoba hobe hobo hoda hode hodh hoed hoha hohe hoho hood hooe hoox hoxa o-eo oade oahe obad obba obbo obea obed obex oboe obox odah odax odbo odda oddd odea oded odeo odex odoh odoo oeax oedo ohad ohba ohbe ohed ohee ohho ohob ohoh ooaa ooba oobe ooda ooha ooho oooh oooo oxa- oxea oxo- oxox oxxo x-ed xado xbee xbox xexe xoxo xxxo xxxx