a-be a-do aaaa aaab aaad aaae aaaf aaal aaba aabb aabd aabl aada aade aaea aafa aafb aafd aaff aafl aala aald aale aall aalo aaoe aaoo abaa abab abad abae abaf abal abb- abba abbb abbe abbo abda abdo abed abee abel abff abla able ablo aboa abob abod abof abol aboo adaa adab adad adae adal adao adba adda addd adde addl addo adea adeb adee adel adeo adfa adfl adle adob adod adoe adoo aeaf aede aela afaa afad afao afdb afdl afee afel affa affo afla afle afoa afoe afol afoo alaa alad alae alal alao alb- alba albe albo ald- alda alde aldl aldo alea aled alee alef aleo alfa alfe all- alla alle alll allo aloa alod aloe alof alol aloo aoba aola aole baaa baad baaf baal baba babb babe babo bada badb badd bade bado baed bael baff bafo bala bald bale balf ball balo baol bbad bbbb bbdd bbdo bbeb bblb bdle bead beaf beal beba bebb bebe bebo beda bede bedl bedo beeb beed beef beel befa befe beff befo bela beld bele bell belo beo- beod beof bffl 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 boef boel boeo bofa bofd bofe boff bola bold bole boll bolo boob bood booe boof bool d-bo daab daad daae daal daba dabb dabo dada dade dado daeb dafa dafe daff dafo dala dale dalf dall dalo dbfo dddd dead deae deaf deal deba debe deda dedd dede dedo deeb deed deef deel defe deff defo dela deld dele delf dell delo deol dfaf dffa dfoe dlab dlbd doab doae doal doba dobb dobe dobl dod- doda dodd dode dodo doea doel doff dola dold dole dolf doll dolo doob dood doof dool e-la eaaf eaba eada eadb eadd eafb eala eald eale ebal ebba ebbo ebed ebel ebla eboe ebol eboo edad edda edde eddo ede- edea edel edfa edfl edla edle edod eede eeea eeee eefa eefe eefl eele efab efda efeo effa efla el-b elab elad elal elba elbe elbo elda elde elea eled elee elef eleo elfa elfe ella elle ello elod eode eola eole eolo faaa faad faba fabd fabe fabo fada fadd fade fado faeb fafa fafe faff fafo fala fald fale fall falo fbla fble fdoa fead feaf feal feba febo feda fede feeb feed feel fefe feff fefo fela feld fele felf fell felo feod feof ffee ffff flab flad flae flao flea fled flee flob flod floe floo foad foaf foal foba foda fode foed fofo fola fold fole foll folo food foof fool laaa laad laal laba labe labo lada ladd lade lado lael lafb lafe laff lala lald lale lall lalo ldeo leaa lead leaf leal leao leba lebd lebo leda lede ledo leea leed leef leel lefa lefe leff lela lele lell lelo leod leof llao lldb llef llll lloa llod lloo load loaf lob- loba lobb lobe lobo loda lode loeb lofa lofe loff lola lold lole loll lolo loob lood looe loof lool o-eo oade oafo 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 off- offa offe offo ofla olaf olba olbo oldb olde ole- olea oled olef oleo olfa olfe olla olle ollo olof ooaa ooba oobe ooda ooff oola oold oolo oooo