a-do a-ha aaaa aaab aaac aaad aaah aaal aaar aaba aabb aabc aabd aabh aabl aaca aacb aacc aacd aach aacl aaco aacr aada aadc aaha aahl aala aalc aald aall aalo aaoo aara aarc aard aaro abaa abab abac abad abal abar abb- abba abbb abbo abbr abca abcb abcc abcd abch abcl abcr abda abdo abha abho abhr abla ablo aboa abob abod aboh abol aboo abor abra abrc abro acaa acab acac acad acar acba acbl acca accc accd acch acco acda acdb acdc acha achh achl acho achr acla aclc aclr acoa acod acoh acol acor acr- acra acrc acro acrr adaa adab adac adad adah adal adao adar adba adbc adcc adda addc addd addl addo addr adha adhd adho adob adoc adod adoo ador adra adro ahab ahac ahad ahah ahal ahar ahdl ahha ahla ahoa ahod ahor ahra ahrc ahrr alaa alac alad alal alao alar alb- alba albc albo alca alcc alco ald- alda aldl aldo alha all- alla allh alll allo allr aloa aloc alod aloh alol aloo alor alro aoah aoba aoca aodh aola aora aorb arab arac arad arah aral arar arba arbh arc- arca arch arco arda ardc ardl ardo arh- arla arlo aroa arob arod aroo aror arr- arra arrc arrh arro arrr baaa baad baah baal baar baba babb babo babr bac- baca bacc bach baco bada badb badd badh bado badr baha bahl baho bahr bala balc bald ball balo baoh baol bar- bara barb barc bard barh baro barr bbad bbbb bbch bbdd bbdo bblb bbrc bcaa bcar bcbc bcca bccc bccl bcda bchd bcor bcra bd-r bdbc bddc bddh bhao bhar bhca bhcc bhdl bhor bhra blaa blab blac blad blah bldc bldr blob bloc blod bloo blrc boab boac boad boal boar boba bobb bobo boca boch boco boda bodb bodh bodo boha bohd bohl boho bohr bola bold boll bolo boob booc bood booh bool boor bor- bora bord borh boro borr brab brac brad brah brao brca brcb brda brdo broa brob broc brod broh brol broo bror brrr c-bo c-cd caaa caab caac caah caal caba cabo cac- caca cacc cach caco cacr cada cadc cadd cado cadr caha cahl cala calc cald call calo caod caol caor cara carb carc card carl caro carr cbac cbal cbar cbbc cbca cbcc cbcl cbcr cbdb cbdc cbdo cbha cbhl cblb cblc cbol cbrd cbrh cbrl ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc cccl ccdc ccdh ccdr ccha cchl cchr ccla cclc ccob ccoc ccod ccra ccrc ccrl cd-r cdaa cdac cdad cdba cdda cddb cddl cddr chaa chab chac chad chah chal chao char chca chch chha chlc chlr choc chod choh chol choo chor chra chrb chrc chrd chro chrr clab clad clar clcd cldc cldr clob clod cloo clor clra clrd clro coad coal coba cobb cobh cobo coca coch coco coda codd codl coha coho col- cola colb cold coll colo coob cood cooh cool cor- cora corb corc cord corl coro corr crab crac crar crbc crca crcc crcr crda crdc crob croc crod croh crol croo cror d-bo daab daad daal daar daba dabb dabo daca dada dado daha dahl dala dall dalo dara darb darc dard darl daro darr dbar dbcc dcbc dcca dccb dccc dccl dcdb dcra dddd ddlc ddoc ddrc dhaa dhad dhal dhao dhar dhod dhol dhor dlab dlbd dlco dlha doab doal doar doba dobb dobl doca doch doco dod- doda dodd dodo doha dohc dohl dohr dola dold doll dolo doob dood dool door dora dorc dord doro dorr draa drab drac drad drar drba drbc drca drda drob drod droh drol drra haab haad haal haar haba habo haco hada hadh hadl haha haho hal- hala halb hald hall halo haor hara harc hard harh harl haro harr hbar hbcd hboc hcbc hcca hccb hccc hcch hcdr hcrd hdca hdda hdoc hdod hdra hhaa hhcl hhhh hhla hlah hlod hoac hoad hoar hoba hobo hoca hoch hocr hoda hodh hodr hoha hohl hoho hol- hola holb holc hold holh holl holo hood hool hoor hora horc hord horl horo horr hrac hrad hrbl hrdc hrob hrod hrrc laaa laac laad laal laar laba labo labr laca lacc lach lacl laco lada ladd lado laha laho lahr lala lald lall lalo lara larb larc lard larr lbar lbcc lblr lcac lcad lcbc lcca lccc lcdd lcdr lchc lchr lcor lcra lcrd lcrl ldha lhhh lhor llao llcc lldb lldc lllc llll lloa lloc llod lloo loac load loar lob- loba lobb lobh lobo loca locc loch loco loda lodh loha loho lohr lola lold loll lolo loob looc lood lool loor lora lord loro lrac lral lrba lrdd lroc lrrc lrrr oall oara obad obal obba obbo obla obol obor obra obrh obro ocab ocac ocad ocal ocbc occa occc ocha oclc ocra ocrl ocro ocrr odac odah odal odbo odda oddd odla odoh odoo odor odra odrl ohad ohal ohba ohcc ohho ohob ohoh ohra olac olah olar olba olbo olca olcc oldb oldh olla ollo olor ooaa ooba oocr ooda ooha ooho oola oold oolo oooh oooo oora oord orab orac orad orah oral orao orar orba orbb orbo orca orch orco orda ordo orla orlo oro- oror orra orro raab raad raba rabb rabl rabo rac- raca racc rach raco rada radc radd radh radl rado radr raha rahl rahr rala ralb rall ralo raob raoc raoh raol rara rarb raro rbbb rbbr rbcl rboh rcac rcbc rcbo rccb rccc rcdc rchb rcrd rdac rdoc rhoa rhob rhoc rhod rhoh rlab roab road roar rob- roba robb robo roca rocc roch roco roda rodd rodo roha rohl rohr rola rold roll rolo roob rood rool roor rora rorc roro rrad rrah rrrr