a-ak aaaa aaac aaae aaal aaca aacc aace aack aacl aaea aaec aaka aake aala aalc aale aall acaa acac acae acca accc acce ace- acea acec acek acel acke acla aclc acle aeac aecl aeka aela aelc akaa akae akal akca akee akel akka akle alaa alac alae alak alal alca alcc alce alea alec alee alek alk- alka alke all- alla alle alll caaa caac caal cac- caca cacc cace cack caec caka cake cala calc cale calk call ccaa ccac ccca cccc cccl ccee ccel ccla cclc ceac ceal cec- ceca cece ceec ceel ceke cel- cela celc cele cell ckac ckck ckcl clea clec clee clek e-cl e-la eaca eacc eaec eala ealc eale ecaa ecac ecal ecca eccc ecce eccl ecka ecla eeca eeea eeee eeka eeke eele eka- ekek ekka elac elal elca elce elea elec elee elek elka elke ella elle kaaa kaak kaal kacc kace kacl kael kaka kakc kake kakk kala kalc kale kalk kall kcaa kcac kcal kcca kccc kcck kccl kcea kcec kcee kcel kckc kckk kckl kcla kclc kcle kclk kcll kea- keak keal keca keck keek keel keka kekc keke kekl kela kele kelk kell kkaa kkac kkal kkck kkcl kkea kkkk kklc kkll klaa klac klak klal klca klcc klce klck klcl klea klec klee klek klka klkc klkk klkl klla kllc klle kllk laaa laac laak laal laca lacc lace lack lacl lael laka lake lala lale lall lcac lcca lccc lcce leaa leak leal leca lece leck leea leek leel leka leke lekk lela lele lell lkal llcc lllc llll