a-be a-do aaaa aaab aaad aaae aaba aabb aabd aada aade aaea aage aaoe aaoo abaa abab abad abae abag abb- abba abbb abbe abbo abda abdo abed abee abgd aboa abob abod aboo adaa adab adad adae adag adao adba adda addd adde addo adea adeb adee adeo adob adod adoe adog adoo aede aega ag-o agad agag agao agba agbo agda agde agea aged agee agga agge agob agod agog agoo aoba baaa baad baba babb babe babo bada badb badd bade bado baed baga bage bagg bago bbad bbbb bbdd bbdo bbeb bbga bdog bead beag beba bebb bebe bebo beda bede bedo beeb beed beeg bega begg bego beo- beod boab boad boag boba bobb bobe bobo boda bodb bode bodo boea boee boeo boga bogd boge bogg bogo boob bood booe boog d-bo daab daad daae daag daba dabb dabo dada dade dado daeb daga dage dagg dago dbag dddd dead deae deba debe deda dedd dede dedo deeb deed deeg dega dege dego dgeg dgge doab doae doba dobb dobe dod- doda dodd dode dodg dodo doea doeg dog- doga doge dogg dogo doob dood eaba eada eadb eadd eaga eage ebba ebbo ebed eboe eboo edad edag edda edde eddo ede- edea edge edod eede eeea eeee eega egaa egad egae egao egba egbe egea egee eggb egge eggo ego- eode gaba gabb gabe gabo gada gadd gade gado gaea gaed gaga gage gagg gago gbag gbbo gbde gddb geab gead geba gebe geda gedd gede gedo geed gege gegg gego geo- geog gggg goad goba gobe gobo goda gode godo goed goga gogo good goog o-eo oade obad obba obbo obea obed oboe odbo odda oddd odea oded odeo odoo oedo oegb ogae ogb ogba ogbe ogea ogee ogge ogoa ogod ogog ooaa ooba oobe ooda oooo