a-do a-ha aaaa aaab aaac aaad aaah aaal aaba aabb aabc aabd aabh aabl aabt aaca aacb aacc aacd aach aacl aaco aact aada aadc aadt aaha aahl aala aalc aald aall aalo aaoo aata aatc aatt abaa abab abac abad abal abat abb- abba abbb abbo abbt abca abcb abcc abcd abch abcl abct abda abdo abha abho abla ablo aboa abob abod aboh abol aboo abot abta ac-t acaa acab acac acad acat acba acbl acca accc accd acch acco acct acda acdb acdc acdt acha achh achl acho acht acla aclc acoa acod acoh acol acot acta actc acth actl acto actt adaa adab adac adad adah adal adao adat adba adbc adcc adda addc addd addl addo adha adhd adho adob adoc adod adoo adot adta ahab ahac ahad ahah ahal ahat ahdl ahha ahla ahoa ahod ahot ahta ahto alaa alac alad alal alao alat alb- alba albc albo alca alcc alco ald- alda aldl aldo alha all- alla allh alll allo aloa aloc alod aloh alol aloo alot alta alto aoah aoba aoca aodh aola aotc aotd at-l at-t ataa atab atac atad atal atat atca atcc atch atcl atco atdt atha athl atho atla atlo atob atoc atod atol atot atta atto baaa baad baah baal baat baba babb babo bac- baca bacc bach baco bact bada badb badd badh bado baha bahl baho baht bala balc bald ball balo balt baoh baol bata batc bath bato batt bbad bbbb bbch bbdd bbdo bblb bcaa bcat bcbc bcca bccc bccl bcda bchd bctc bdbc bddc bddh bhao bhat bhca bhcc bhdl bhot blaa blab blac blad blah blat blbt bldc blob bloc blod bloo blot boab boac boad boal boat boba bobb bobo boca boch boco boda bodb bodh bodo boha bohd bohl boho boht bola bold boll bolo bolt boob booc bood booh bool boot bota botb botd both boto bott btaa btcc btcl btdt btla btob bttb c-bo c-cd caaa caab caac caah caal caat caba cabo cac- caca cacc cach caco cada cadc cadd cado caha cahl caht cala calc cald call calo calt caod caol cat- cata catb catc catd cath cato catt cbac cbal cbat cbbc cbca cbcc cbcl cbct cbdb cbdc cbdo cbha cbhl cblb cblc cbol cbot cbta cbtc cbtl ccaa ccab ccac ccad ccat ccba ccbc ccca cccb cccc cccl ccdc ccdh ccha cchl ccla cclc ccob ccoc ccod cctb cctc cctl cctt cdaa cdac cdad cdba cdda cddb cddl cdot chaa chab chac chad chah chal chao chat chca chch chha chlc chlt choc chod choh chol choo chto chtt clab clad clat clcd cldc clob clod cloo clot cltb cltc coad coal coat coba cobb cobh cobo coca coch coco coct coda codd codl coha coho col- cola colb cold coll colo colt coob cood cooh cool coot cota cotb cotc coth coto cott ctab ctal ctba ctca ctol ctot ctta d-bo daab daad daal daba dabb dabo dabt daca dact dada dado daha dahl dala dall dalo dalt data dato datt dbcc dbtt dcbc dcca dccb dccc dccl dcct dcdb dctc dddd ddlc ddoc ddot dhaa dhad dhal dhao dhat dhod dhol dlab dlbd dlco dlha doab doal doat doba dobb dobl doca doch doco doct dod- doda dodd dodo doha dohc dohl dola dold doll dolo dolt doob dood dool doot dota dotd doth doto dott dtaa dtac dtcc dthd dtla dtot haab haad haal haat haba habo habt haco hada hadh hadl haha haho haht hal- hala halb hald hall halo halt hata hatb hath hato hatt hbcd hboc hbtl hcat hcbc hcca hccb hccc hcch hdca hdda hdoc hdod hdtt hhaa hhat hhcl hhhh hhla hlah hlod hoac hoad hoat hoba hobo hoca hoch hoda hodh hoha hohl hoho hol- hola holb holc hold holh holl holo holt hood hool hoot hota hotb hotd hoth hotl hoto hott htab htcc htoh htol laaa laac laad laal laat laba labo laca lacc lach lacl laco lact lada ladd lado laha laho laht lala lald lall lalo lata latc latd lath lato latt lbcc lcac lcad lcat lcbc lcca lccc lcdd lchc lctl lcto ldha lhhh llao llat llcc lldb lldc lllc llll lloa lloc llod lloo loac load loat lob- loba lobb lobh lobo loca locc loch loco loda lodh loha loho lola lold loll lolo loob looc lood lool loot lota lotd loth lotl loto lott ltac ltbl ltcc lttc oall oath obad obal obba obbo obdt obla obol obot obtd ocab ocac ocad ocal ocat ocbc occa occc occt ocha ocht oclc oct- octa octo odac odah odal odbo odda oddd odla odoh odoo odot ohad ohal ohba ohcc ohho ohob ohoh ohta ohto olac olah olat olba olbo olca olcc oldb oldh olla ollo olot olta ooaa ooba ooda ooha ooho oola oold oolo oooh oooo ootb otac otbd otcd otcl otha otho oto- otoh otoo otta otto taa- taal taat taba tabb tabc tabl tabo taca tacc tach tacl taco tact tada tado taha taho tala talc talh tall talo taoa tata tatb tath tato tatt tbca tbcb tbcc tbcd tbta tcad tcca tccc tcdd tch- tcha tchh tcho tctc tdac tdal tddb thaa thad thal thao that thca thch thoo thot thtb tlac tlco toab toad toal toat toba tobo tobt toca toch toco toda todd todo todt toho tol- tola told toll tolo tolt tooa tood tooh tool toot tota totc totd toth toto tott ttab ttbb tttt