a-be a-do aaaa aaab aaad aaae aaal aaba aabb aabd aabl aada aade aaea aala aald aale aall aalo aaoe aaoo abaa abab abad abae abal abb- abba abbb abbe abbo abda abdo abed abee abel abla able ablo aboa abob abod abol aboo adaa adab adad adae adal adao adba adda addd adde addl addo adea adeb adee adel adeo adle adob adod adoe adoo aede aela alaa alad alae alal alao alb- alba albe albo ald- alda alde aldl aldo alea aled alee aleo all- alla alle alll allo aloa alod aloe alol aloo aoba aola aole baaa baad baal baba babb babe babo bada badb badd bade bado baed bael bala bald bale ball balo baol bbad bbbb bbdd bbdo bbeb bblb bdle bead beal beba bebb bebe bebo beda bede bedl bedo beeb beed beel bela beld bele bell belo beo- beod blaa blab blad blae blea bleb bled blee bleo blob blod bloo boab boad boal boba bobb bobe bobo boda bodb bode bodo boea boee boel boeo bola bold bole boll bolo boob bood booe bool d-bo daab daad daae daal daba dabb dabo dada dade dado daeb dala dale dall dalo dddd dead deae deal deba debe deda dedd dede dedo deeb deed deel dela deld dele dell delo deol dlab dlbd doab doae doal doba dobb dobe dobl dod- doda dodd dode dodo doea doel dola dold dole doll dolo doob dood dool e-la eaba eada eadb eadd eala eald eale ebal ebba ebbo ebed ebel ebla eboe ebol eboo edad edda edde eddo ede- edea edel edla edle edod eede eeea eeee eele el-b elab elad elal elba elbe elbo elda elde elea eled elee eleo ella elle ello elod eode eola eole eolo laaa laad laal laba labe labo lada ladd lade lado lael lala lald lale lall lalo ldeo leaa lead leal leao leba lebd lebo leda lede ledo leea leed leel lela lele lell lelo leod llao lldb llll lloa llod lloo load lob- loba lobb lobe lobo loda lode loeb lola lold lole loll lolo loob lood looe lool o-eo oade oall obad obal obba obbo obea obed obel obla oble oboe obol odal odbo odda oddd odea oded odel odeo odla odle odoo oedo oela oele olba olbo oldb olde ole- olea oled oleo olla olle ollo ooaa ooba oobe ooda oola oold oolo oooo