-ana -ane -ene a-ak a-be aaaa aaab aaae aaaf aaan aaba aabb aaea aaen aafa aafb aaff aaka aake aana aane abaa abab abae abaf abak aban abb- abba abbb abbe abee aben abff aeaf aean aebn aeka aena afaa afak afan afee afek affa afka akaa akae akan akee aken akka akna ana- anaa anab anae anak anan anba anbb anee anen anfa ank- anka anke anna annb anne baaa baaf baak baan baba babb babe baek baff bak- baka bake bana bane bank bann bbbb bbeb bbfn beaf beak bean beba bebb bebe beeb beef beek been befa befe beff beka beke bena bene benk benn eaaf eaba eafb eana eban ebba eben eeea eeee eefa eefe eefn eeka eeke eena efab efen effa efke eka- ekab ekeb ekek eken ekka ekne enab enan enb- enbn enea enee enfb enka enke enna enne f--k faaa faan faba fabe faeb fafa fafe faff fake fana fane fank feaf feak fean feba feeb feek feen fefe feff feke fena fene fenk fenn ffee ffff fkab kaaa kaab kaaf kaak kaan kaba kabb kabe kabf kafa kafe kaff kafn kaka kake kakk kakn kana kanb kane kanf kann kbaa kbab kbae kbak kbba kbbb kbbe kbbf kbbk kbeb kbee kbef kbek kben kbfb kbff kbfk kbkb kbkf kbkk kbna kbnn kea- keak kean keba kebb kebe kebn keef keek keen kefa kefb keff keka kekb keke ken- kena kene kenk kenn kfab kfan kfbk kfbn kfeb kffa kffb kfff kffk kffn kfka kfkb kfna kfnf kfnk kfnn kkaa kkan kkba kkbb kkbe kkbn kkea kken kkfn kkkk kknb kkne kknn knaa knab knaf knan knba knbb knbe knbn knea kneb knee knef knek knen knfa knkk knnb knnk naaa naab naan naba nabe nabf nabk naea naef nafa nafe naff naka nake nan- nana nanb nane nann nbaa nbaf nbak nbfa neab neaf nean neba nebb nebe nebn neea neeb neef neen nefa nefe neff neka neke nena nene nfaa nfff nnnn