a-do aaaa aaab aaad aaal aaba aabb aabd aabl aabt aada aadt aala aald aall aalo aaoo aata aatt abaa abab abad abal abat abb- abba abbb abbo abbt abda abdo abla ablo aboa abob abod abol aboo abot abta adaa adab adad adal adao adat adba adda addd addl addo adob adod adoo adot adta alaa alad alal alao alat alb- alba albo ald- alda aldl aldo all- alla alll allo aloa alod alol aloo alot alta alto aoba aola aotd at-l at-t ataa atab atad atal atat atdt atla atlo atob atod atol atot atta atto baaa baad baal baat baba babb babo bada badb badd bado bala bald ball balo balt baol bata bato batt bbad bbbb bbdd bbdo bblb blaa blab blad blat blbt blob blod bloo blot boab boad boal boat boba bobb bobo boda bodb bodo bola bold boll bolo bolt boob bood bool boot bota botb botd boto bott btaa btdt btla btob bttb d-bo daab daad daal daba dabb dabo dabt dada dado dala dall dalo dalt data dato datt dbtt dddd ddot dlab dlbd doab doal doat doba dobb dobl dod- doda dodd dodo dola dold doll dolo dolt doob dood dool doot dota dotd doto dott dtaa dtla dtot laaa laad laal laat laba labo lada ladd lado lala lald lall lalo lata latd lato latt llao llat lldb llll lloa llod lloo load loat lob- loba lobb lobo loda lola lold loll lolo loob lood lool loot lota lotd lotl loto lott ltbl oall obad obal obba obbo obdt obla obol obot obtd odal odbo odda oddd odla odoo odot olat olba olbo oldb olla ollo olot olta ooaa ooba ooda oola oold oolo oooo ootb otbd oto- otoo otta otto taa- taal taat taba tabb tabl tabo tada tado tala tall talo taoa tata tatb tato tatt tbta tdal tddb toab toad toal toat toba tobo tobt toda todd todo todt tol- tola told toll tolo tolt tooa tood tool toot tota totd toto tott ttab ttbb tttt