a-ak aaaa aaac aaae aaaf aaal aaca aacc aace aacf aack aacl aaea aaec aafa aafc aaff aafl aaka aake aala aalc aale aall acaa acac acae acca accc acce accf ace- acea acec acek acel acfc acfe acfl acke acla aclc acle aeac aeaf aecl aeka aela aelc afaa afak afca afcc afee afek afel affa affc afka afla aflc afle akaa akae akal akca akee akel akka akle alaa alac alae alak alal alca alcc alce alea alec alee alef alek alfa alfe alk- alka alke all- alla alle alll caaa caac caaf caal cac- caca cacc cace cack caec cafa cafc cafe caff cafl caka cake cala calc cale calf calk call ccaa ccac ccaf ccca cccc cccf cccl ccee ccel ccfa ccfc ccff ccfl ccla cclc ceac ceal cec- ceca cece ceec ceel cef- cefa cefc ceke cel- cela celc cele celf cell cfaa cfac cfae cfca cfcf cfcl ckac ckck ckcl cklf claf clea clec clee clef clek e-cl e-la eaaf eaca eacc eaec eala ealc eale ecaa ecac ecal ecca eccc ecce eccl ecef ecfa ecfc ecka ecla eeca eeea eeee eefa eefe eefl eeka eeke eele efca effa efke efla eka- ekek ekfc ekka elac elal elca elce elea elec elee elef elek elfa elfc elfe elka elke ella elle f--k faaa faac faca facc face fack fafa fafc fafe faff fake fala falc fale falk fall fcal fcca fccf feaf feak feal fece feck feek feel fefc fefe feff feke fela fele felf felk fell ffcc ffee ffff flac flae flak flcl flea flee kaaa kaaf kaak kaal kacc kace kacl kael kafa kafc kafe kaff kaka kakc kake kakk kala kalc kale kalf kalk kall kcaa kcac kcal kcca kccc kcck kccl kcea kcec kcee kcel kcfa kcfc kcfl kckc kckf kckk kckl kcla kclc kcle kclf kclk kcll kea- keak keal keca keck keef keek keel kefa kefc keff keka kekc keke kekl kela kele kelf kelk kell kfac kfal kfcf kfel kffa kfff kffk kfka kfla kflc kflf kfll kkaa kkac kkal kkck kkcl kkea kkkk kklc kklf kkll klaa klac klaf klak klal klca klcc klce klck klcl klea klec klee klef klek klfa klfc klfe klff klka klkc klkk klkl klla kllc klle kllk laaa laac laak laal laca lacc lace lack lacl lael lafc lafe laff laka lake lala lale lall lcac lcca lccc lcce lcfc leaa leaf leak leal leca lece leck leea leef leek leel lefa lefe leff leka leke lekk lela lele lell lfca lfcc lkal llcc llef lllc llll