a-be a-do aaaa aaab aaac aaad aaae aaal aaar aaba aabb aabc aabd aabl aabt aaca aacb aacc aacd aace aacl aaco aacr aact aada aadc aade aadt aaea aaec aala aalc aald aale aall aalo aaoe aaoo aara aarc aard aare aaro aart aata aatc aatt abaa abab abac abad abae abal abar abat abb- abba abbb abbe abbo abbr abbt abca abcb abcc abcd abcl abcr abct abda abdo abec abed abee abel aber abet abla able ablo aboa abob abod abol aboo abor abot abra abrc abro abta ac-t acaa acab acac acad acae acar acat acba acbl acca accc accd acce acco acct acda acdb acdc acde acdt ace- acea acec aced acel acer acet acla aclc acle aclr acoa acod acoe acol acor acot acr- acra acrc acre acro acrr acta actc acte actl acto actt adaa adab adac adad adae adal adao adar adat adba adbc adcc adda addc addd adde addl addo addr adea adeb adee adel adeo ader adet adle adob adoc adod adoe adoo ador adot adra adre adro adta aeac aecb aecl aect aede aedt aeer aela aelc aer- aera aerc aerd aero aeta aetc aeto aetr aett alaa alac alad alae alal alao alar alat alb- alba albc albe albo alca alcc alce alco ald- alda alde aldl aldo alea alec aled alee aleo aler alet all- alla alle alll allo allr aloa aloc alod aloe alol aloo alor alot alro alta alte alto aoba aoca aoce aola aole aora aorb aort aotc aotd arab arac arad arae aral arar arat arba arbe arc- arca arce arco arct arda ardc arde ardl ardo area arec ared aree arel areo aret arla arle arlo aroa arob arod aroe aroo aror arr- arra arrc arre arro arrr arrt arta artc arte arto artr at-l at-t ataa atab atac atad atae atal atar atat atca atcc atcl atco atcr atdt atea atec ated atee atel ateo ater atla atle atlo atob atoc atod atoe atol ator atot atra atrc atre atro atta atte atto attr baaa baad baal baar baat baba babb babe babo babr bac- baca bacc bace baco bact bada badb badd bade bado badr baed bael baer bala balc bald bale ball balo balt baol bar- bara barb barc bard bare baro barr bart bata batc bate bato batt bbad bbbb bbdd bbdo bbeb bbet bblb bbrc bcaa bcar bcat bcbc bcca bccc bccl bcda bcde bcec bcer bcet bcor bcra bctc bd-r bdbc bddc bdle bead beal bear beat beba bebb bebe bebo beca beda bede bedl bedo beeb beed beel beer beet bela beld bele bell belo belt beo- beod beor beot bera berc berd bere bero berr bert beta betc bete beto bett blaa blab blac blad blae blat blbt bldc bldr blea bleb bled blee bleo blet blob bloc blod bloo blot blrc boab boac boad boal boar boat boba bobb bobe bobo boca boce boco boda bodb bode bodo boea boec boee boel boeo boer boet bola bold bole boll bolo bolt boob booc bood booe bool boor boot bor- bora bord bore boro borr bort bota botb botd bote boto bott brab brac brad brae brao brat brca brcb brce brda brdo brdt brea breb brec bred bree brel breo brer bret broa brob broc brod broe brol broo bror brot brrr brtc btaa btcc btcl btdt btec btla btob btor btrc btrt bttb c-bo c-cd caaa caab caac caal caat caba cabe cabo cac- caca cacc cace caco cacr cada cadc cadd cade cado cadr caec caer cala calc cald cale call calo calt caod caol caor cara carb carc card care carl caro carr cart cat- cata catb catc catd cate cato catt cbac cbal cbar cbat cbbc cbca cbcc cbce cbcl cbcr cbct cbdb cbdc cbdo cbea cbec cbee cber cbet cblb cblc cbol cbot cbrd cbre cbrl cbrt cbta cbtc cbtl ccaa ccab ccac ccad ccar ccat ccba ccbc ccca cccb cccc cccl ccdc ccdr cced ccee ccel ccla cclc ccob ccoc ccod ccra ccrc ccre ccrl ccrt cctb cctc cctl cctt cd-e cd-r cdaa cdac cdad cdba cdda cddb cddl cddr cdec cder cdot cdre ceac cead ceal cear ceat ceba cec- ceca cece ceco cect ceda cedd cede cedo cedt ceeb ceec ceel cel- cela celc cele cell celo celt ceol ceor cer- cera cerc cerd cere cerl cero cert cet- ceta cete ceto clab clad clar clat clcd cldc cldr clea clec cled clee cleo cler clet clob clod cloe cloo clor clot clra clrd clro cltb cltc coad coal coat coba cobb cobe cobo coca coce coco coct coda codd code codl coed coel col- cola colb cold cole coll colo colt coob cood cool coot cor- cora corb corc cord core corl coro corr cort cota cotb cotc cote coto cott crab crac crar crat crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree creo cret crob croc crod croe crol croo cror crot crrt crtc crtl ctab ctae ctal ctba ctca ctec ctle ctol ctor ctot ctrc ctrl ctta d-bo daab daad daae daal daar daba dabb dabo dabt daca dace dact dada dade dado daeb daer dala dale dall dalo dalt dara darb darc dard dare darl daro darr dart data date dato datr datt dbar dbcc dbtt dcbc dcca dccb dccc dccl dcct dcdb dcra dctc dddd ddlc ddoc ddot ddrc ddre deac dead deae deal dear deba debe debt dec- deca decc decd dece decl deco dect deda dedd dede dedo deeb deed deel deer deet dela deld dele dell delo delt deol deor der- dera derb derc dere dero derr deta dete deto detr dlab dlbd dlco doab doae doal doar doat doba dobb dobe dobl doca doce doco doct dod- doda dodd dode dodo doea doel doer dola dold dole doll dolo dolt doob dood dool door doot dora dorc dord dore doro dorr dort dota dotd dote doto dott draa drab drac drad