a-do aaaa aaab aaad aaaf aaal aaba aabb aabd aabl aabt aada aadt aafa aafb aafd aaff aafl aala aald aall aalo aaoo aata aatf aatt abaa abab abad abaf abal abat abb- abba abbb abbo abbt abda abdo abff abla ablo aboa abob abod abof abol aboo abot abta adaa adab adad adal adao adat adba adda addd addl addo adfa adfl adob adod adoo adot adta afaa afad afao afat afdb afdl affa affo afft afla afoa afol afoo afta alaa alad alal alao alat alb- alba albo ald- alda aldl aldo alfa all- alla alll allo aloa alod alof alol aloo alot alta alto aoba aola aotd aotf at-l at-t ataa atab atad atal atat atdt atfb atla atlo atob atod atof atol atot atta atto baaa baad baaf baal baat baba babb babo bada badb badd bado baff bafo baft bala bald balf ball balo balt baol bata batf bato batt bbad bbbb bbdd bbdo bblb bffl bfta bftt blaa blab blad blat blbt blob blod bloo blot boab boad boal boat boba bobb bobo boda bodb bodo bofa bofd boff bola bold boll bolo bolt boob bood boof bool boot bota botb botd boto bott btaa btaf btdt btla btob bttb d-bo daab daad daal daba dabb dabo dabt dada dado dafa daff dafo daft dala dalf dall dalo dalt data dato datt dbfo dbtt dddd ddot dfaf dfdt dffa dlab dlbd doab doal doat doba dobb dobl dod- doda dodd dodo doff dola dold dolf doll dolo dolt doob dood doof dool doot dota dotd doto dott dtaa dtla dtot faaa faad faba fabd fabo fada fadd fado fafa faff fafo fala fald fall falo falt fata fatf fato fatt fbla fdoa fdot fdtl ffff fftf flab flad flao flat flob flod floo flot foad foaf foal foba fobt foda fofo fola fold foll folo folt food foof fool foot fota foto fott ft-l ftlb laaa laad laal laat laba labo lada ladd lado lafb laff laft lala lald lall lalo lata latd lato latt lfat llao llat lldb llll lloa llod lloo load loaf loat lob- loba lobb lobo loda lofa loff loft lola lold loll lolo loob lood loof lool loot lota lotd lotl loto lott ltbf ltbl oafo oall obad obal obba obbo obdt obla obol obot obtd odal odbo odda oddd odla odoo odot off- offa offo ofla ofta olaf olat olba olbo oldb olfa olla ollo olof olot olta ooaa ooba ooda ooff oola oold oolo oooo ootb otbd oto- otof otoo otta otto taa- taaf taal taat taba tabb tabl tabo tada tado tafa taff tafo taft tala tall talo taoa tata tatb tato tatt tbaf tbta tdal tddb tdff tfal tfot toab toad toal toat toba tobo tobt toda todd todo todt tofa toff tofo toft tol- tola told toll tolo tolt tooa tood toof tool toot tota totd toto tott ttab ttbb ttfa ttff tttt