a-be aaaa aaab aaac aaad aaae aaal aaar aaba aabb aabc aabd aabl aaca aacb aacc aacd aace aacl aacr aada aadc aade aaea aaec aala aalc aald aale aall aara aarc aard aare abaa abab abac abad abae abal abar abb- abba abbb abbe abbr abca abcb abcc abcd abcl abcr abda abec abed abee abel aber abla able abra abrc acaa acab acac acad acae acar acba acbl acca accc accd acce acda acdb acdc acde ace- acea acec aced acel acer acla aclc acle aclr acr- acra acrc acre acrr adaa adab adac adad adae adal adar adba adbc adcc adda addc addd adde addl addr adea adeb adee adel ader adle adra adre aeac aecb aecl aede aeer aela aelc aer- aera aerc aerd alaa alac alad alae alal alar alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee aler all- alla alle alll allr arab arac arad arae aral arar arba arbe arc- arca arce arda ardc arde ardl area arec ared aree arel arla arle arr- arra arrc arre arrr baaa baad baal baar baba babb babe babr bac- baca bacc bace bada badb badd bade badr baed bael baer bala balc bald bale ball bar- bara barb barc bard bare barr bbad bbbb bbdd bbeb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcda bcde bcec bcer bcra bd-r bdbc bddc bdle bead beal bear beba bebb bebe beca beda bede bedl beeb beed beel beer bela beld bele bell bera berc berd bere berr blaa blab blac blad blae bldc bldr blea bleb bled blee blrc brab brac brad brae brca brcb brce brda brea breb brec bred bree brel brer brrr c-cd caaa caab caac caal caba cabe cac- caca cacc cace cacr cada cadc cadd cade cadr caec caer cala calc cald cale call cara carb carc card care carl carr cbac cbal cbar cbbc cbca cbcc cbce cbcl cbcr cbdb cbdc cbea cbec cbee cber cblb cblc cbrd cbre cbrl ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc cccl ccdc ccdr cced ccee ccel ccla cclc ccra ccrc ccre ccrl cd-e cd-r cdaa cdac cdad cdba cdda cddb cddl cddr cdec cder cdre ceac cead ceal cear ceba cec- ceca cece ceda cedd cede ceeb ceec ceel cel- cela celc cele cell cer- cera cerc cerd cere cerl clab clad clar clcd cldc cldr clea clec cled clee cler clra clrd crab crac crar crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree daab daad daae daal daar daba dabb daca dace dada dade daeb daer dala dale dall dara darb darc dard dare darl darr dbar dbcc dcbc dcca dccb dccc dccl dcdb dcra dddd ddlc ddrc ddre deac dead deae deal dear deba debe dec- deca decc decd dece decl deda dedd dede deeb deed deel deer dela deld dele dell der- dera derb derc dere derr dlab dlbd draa drab drac drad drar drba drbc drca drda drea dred dree drel drra e-cl e-la eaba eaca eacc eada eadb eadd eaec eala ealc eald eale eara earb eard eare earl ebac ebal ebba ebbc ebbr ebcc ebed ebel eber ebla ecaa ecac ecad ecal ecar ecbc ecbe ecca eccb eccc ecce eccl ecdc ecdl eced ecla ecra ecrc ecrl ecrr edac edad edar edca edda eddc edde ede- edea edel eder edla edle edra eeca eede eeea eeee eele eera eerc el-b elab elac elad elal elar elba elbe elca elcb elce elda elde eldr elea elec eled elee eler ella elle elra erad eral erba erbb erbe erca ercc erce erda erde ereb erec ered erel erer erla erld erle erll erra errc erre laaa laac laad laal laar laba labe labr laca lacc lace lacl lada ladd lade lael laer lala lald lale lall lara larb larc lard lare larr lbar lbcc lblr lcac lcad lcbc lcca lccc lcce lcdd lcdr lcer lcra lcrd lcrl leaa lead leal lear leba lebd leca lece leda lede leea leed leel leer lela lele lell lera lerc lerd lere llcc lldb lldc lllc llll lrac lral lrba lrdd lrrc lrrr raab raad raba rabb rabe rabl rac- raca racc race rada radc radd rade radl radr raec raed rael raer rala ralb rale rall rara rarb rare rbbb rbbr rbcl rble rcac rcbc rccb rccc rcdc rcde rcle rcrd rdac rder rea- reac read reae real rear reba rebb rebe reca recc recd rece recr reda redc redd rede redl redr reeb reed reel rela relb reld rele rell rera rerd rere rlab rlee rrad rred rrle rrrr