a-ak a-ok aaaa aaab aaac aaal aaba aabb aabc aabl aaca aacb aacc aack aacl aaco aaka aala aalc aall aalo aaoo abaa abab abac abag abak abal abb- abba abbb abbo abca abcb abcc abcl abgl abla ablo aboa abob abok abol aboo acaa acab acac acag acba acbl acca accc acco acga acla aclc acoa acog acol ag-o agac agag agal agao agba agbo agca agcc agco agga agla aglc agob agog agol agoo akaa akal akao akca akka akko aklo akok alaa alac alag alak alal alao alb- alba albc albo alca alcc alco alg- alga algo alk- alka alkb alko all- alla alll allo aloa aloc alog alok alol aloo aoba aoca aola baaa baak baal baba babb babo bac- baca bacc back baco baga bagg bago bak- baka bakl bako bala balc balk ball balo baol bbbb bbga bblb bcaa bcbc bcbg bcca bccc bccl bgca blaa blab blac blag blak blkb blob bloc blog blok bloo boab boac boag boak boal boba bobb bobo boca bock boco boga bogg bogo boka boko bola bolg bolk boll bolo boob booc boog book bool c-bo caaa caab caac caal caba cabg cabo cac- caca cacc cack caco caga cagg cago caka cala calc calk call calo caol cbac cbal cbbc cbca cbcc cbcl cbga cbgb cbka cbkg cbkl cbko cblb cblc cbol ccaa ccab ccac ccag ccba ccbc ccca cccb cccc cccl ccga ccgc ccla cclc cclg ccob ccoc cgac cgal cgcc cgcg ckac ckbc ckck ckcl ckco ckga ckgl ckgo cklg ckoa ckob ckoc ckoo clab clag clkg clob clog clok cloo coag coak coal coba cobb cobo coca cock coco cogo cok- coka coko col- cola colb colk coll colo coob cook cool gaal gaba gabb gabl gabo gack gaga gagg gago gala galk gall galo gaol gbag gbbo gc-c gcaa gcal gcbc gccc gclc gcoa ggcl gggg glaa glab glak glbc glcc glob glog goal goba gobl gobo goca goga gogo gola golk goll golo goog gook gool k-lo kaaa kaab kaag kaak kaal kaba kabb kabc kabg kabo kacb kacc kacl kaco kag- kaga kagb kagc kagg kagl kago kaka kakc kakk kako kala kalb kalc kalk kall kalo kaoa kaoc kaog kaok kaol kbaa kbab kbac kbak kbal kbba kbbb kbbc kbbg kbbk kbbl kbbo kbca kbcb kbck kbcl kbco kbga kbgb kbgg kbgl kbgo kbkb kbkg kbkk kbkl kbko kbla kblb kblg kbll kblo kboa kbob kboc kbok kboo kcaa kcab kcac kcal kcba kcbc kcbk kcbl kcca kccb kccc kcck kccl kcgc kcgl kckc kckk kckl kcko kcla kclc kclk kcll kcob kcog kcol kgab kgac kgak kgal kgba kgbb kgbc kgcb kgcc kgcl kgga kggg kggl kggo kgkl kgla kglb kglk kglo kgol kkaa kkac kkag kkal kkba kkbb kkbg kkbl kkbo kkcb kkck kkcl kkco kkgb kkgl kkgo kkkk kklb kklc kkll kklo kkoa kkob kkol kkoo klaa klab klac klag klak klal klbb klbc klbl klca klcb klcc klck klcl klga klgb klgl klgo klka klkc klkk klkl klko klla kllb kllc kllk kloa klob kloc klog klok klol kloo koab koac koak koal koba kobb kobc kobk kobo koca kocb kock koga kogb kogg kogl kogo koka kokb kokc kokk koko kola kolb kolc kolg kolk koll kolo koob kooc koog kook kool kooo laaa laac laag laak laal laba labo laca lacc lack lacl laco lag- laga lagg lago laka lala lall lalo lbcc lcac lcbc lcca lccc lgca lkab lkal llao llcc llgc lllc llll lloa lloc lloo loac lob- loba lobb lobo loca locc lock loco log- loga logb logo loka lokk loko lola loll lolo loob looc look lool oall obak obal obba obbo obkb obla obok obol ocab ocac ocak ocal ocbc occa occc ocga oclc ogb ogba ogla ogoa ogog okak okgo okka okko okla oklo okok okol olac olba olbo olca olcc olga olgc olka olla ollo olog ooaa ooak ooba oola oolo oooo