a-ak a-be aaaa aaab aaac aaad aaae aaal aaba aabb aabc aabd aabl aaca aacb aacc aacd aace aack aacl aada aadc aade aaea aaec aage aaka aake aala aalc aald aale aall abaa abab abac abad abae abag abak abal abb- abba abbb abbe abca abcb abcc abcd abcl abda abec abed abee abel abgd abgl abla able acaa acab acac acad acae acag acba acbl acca accc accd acce acda acdb acdc acde ace- acea acec aced acek acel acga ackd acke acla aclc acle adaa adab adac adad adae adag adak adal adba adbc adcc adda addc addd adde addl adea adeb adee adel adle aeac aecb aecl aede aega aeka aela aelc agac agad agag agal agba agca agcc agce agda agde agea aged agee agel agga agge agla aglc agle akaa akae akal akca aked akee akeg akel akka akle alaa alac alad alae alag alak alal alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee aleg alek alg- alga alge alk- alka alkb alkd alke all- alla alle alll baaa baad baak baal baba babb babe bac- baca bacc bace back bada badb badd bade baed baek bael baga bage bagg bak- baka bake bakl bala balc bald bale balk ball bbad bbbb bbdd bbeb bbga bblb bcaa bcbc bcbg bcca bccc bccl bcda bcde bcec bdbc bddc bdle bead beag beak beal beba bebb bebe beca beck beda bede bedl beeb beed beeg beek beel bega begg beka beke bela beld bele belg belk bell bgca bkgd blaa blab blac blad blae blag blak bldc bldg blea bleb bled blee bleg blek blkb blkd c-cd caaa caab caac caal caba cabe cabg cac- caca cacc cace cack cada cadc cadd cade caec caga cage cagg caka cake cala calc cald cale calk call cbac cbal cbbc cbca cbcc cbce cbcl cbdb cbdc cbea cbec cbee cbga cbgb cbka cbkg cbkl cblb cblc ccaa ccab ccac ccad ccag ccba ccbc ccca cccb cccc cccl ccdc cced ccee ccel ccga ccgc ccla cclc cclg cd-e cdaa cdac cdad cdba cdda cddb cddl cdec ceac cead ceal ceba cec- ceca cece ceda cedd cede ceeb ceec ceel cege ceke cel- cela celc cele cell cgac cgal cgcc cgcg cged cgel ckac ckbc ckbe ckck ckcl ckga ckgl cklg clab clad clag clcd cldc clea clec cled clee cleg clek clkg daab daad daae daag daal daba dabb daca dace dada dade daeb daga dage dagg daka dake dala dale dalk dall dbag dbcc dcbc dcca dccb dccc dccl dcdb dddd ddlc deac dead deae deak deal deba debe dec- deca decc decd dece deck decl deda dedd dede deeb deed deeg deek deel dega dege dek- deka deke dela deld dele delk dell dgac dgca dgeg dgge dgka dgkb dgkd dgkg dglc dkba dkdc dlab dlbd dleg e-cl e-la eaba eaca eacc eada eadb eadd eaec eaga eage eagl eala ealc eald eale ebac ebal ebba ebbc ebcc ebed ebel ebla ecaa ecac ecad ecal ecbc ecbe ecca eccb eccc ecce eccl ecdc ecdl eced ecka ecla edac edad edag edca edda eddc edde ede- edea edel edge edla edle eeca eede eeea eeee eega eeka eeke eele egaa egad egae egal egba egbe egcc egcg egea egec egee egel eggb egge eglc egle eka- ekab ekeb eked ekek ekka el-b elab elac elad elal elba elbe elca elcb elce elda elde elea elec eled elee elek elgg elka elke ella elle gaal gaba gabb gabe gabl gace gack gada gadd gade gadk gaea gaec gaed gael gaga gage gagg gala gald gale galk gall gbag gbde gc-c gcaa gcal gcbc gccc gcda gclc gdal gdca gddb geab gead geal geba gebe geca gece geck geda gedd gede geed geek geel gege gegg gegl gela gelb geld gele gelg gell ggcl gggg glaa glab glad glak glbc glcc glce glde gleb gled glee gleg glge kaaa kaab kaag kaak kaal kaba kabb kabc kabd kabe kabg kacb kacc kacd kace kacl kad- kada kadd kade kadl kael kag- kaga kagb kagc kage kagg kagl kaka kakc kake kakk kala kalb kalc kald kale kalk kall kbaa kbab kbac kbad kbae kbak kbal kbba kbbb kbbc kbbd kbbe kbbg kbbk kbbl kbca kbcb kbce kbck kbcl kbdb kbde kbdg kbdl kbeb kbec kbed kbee kbek kbel kbga kbgb kbge kbgg kbgl kbkb kbkg kbkk kbkl kbla kblb kbld kble kblg kbll kcaa kcab kcac kcad kcal kcba kcbc kcbd kcbk kcbl kcca kccb kccc kccd kcck kccl kcda kcdc kcdd kcea kceb kcec kced kcee kceg kcel kcgc kcgl kckc kckk kckl kcla kclc kcle kclk kcll kdaa kdab kdac kdad kdae kdag kdak kdal kdbb kdbg kdbl kdca kdcc kdcd kdce kddb kddc kddd kddg kddk kddl kdeb kdec kdel kdge kdgl kdka kdkb kdkd kdkk kdla kdlb kdlc kdld kdlg kdll kea- kead keag keak keal keba kebb kebc kebe keca kecg keck keda kedb kedc kedd kede kedg keed keek keel kega kege kegg kegk kegl keka kekb kekc keke kekl kela keld kele kelg kelk kell kgab kgac kgak kgal kgba kgbb kgbc kgcb kgcc kgcd kgce kgcl kgdb kgdc kgdd kgdl kgeb kgec kged kgga kggg kggl kgkl kgla kglb kgld kgle kglk kkaa kkac kkag kkal kkba kkbb kkbd kkbe kkbg kkbl kkcb kkcd kkck kkcl kkda kkdc kkdd kkdg kkdl kkea kked kkeg kkgb kkgl kkkk kklb kklc kkld kkll klaa klab klac klad klag klak klal klbb klbc klbd klbe klbl klca klcb klcc klcd klce klck klcl kldc kldd klde kldg klea kleb klec kled klee klek klga klgb klgd klgl klka klkc klkk klkl klla kllb kllc klle kllk laaa laac laad laag laak laal laba labe laca lacc lace lack lacl lada ladd lade lael lag- laga lage lagg laka lake lala lald lale lall lbcc lcac lcad lcbc lcca lccc lcce lcdd leaa lead leag leak leal leba lebd leca lece leck leda lede leea leed leek leel lega