-ana -ane -ene aaaa aaac aaae aaaf aaan aaca aacc aace aacf aacn aaea aaec aaen aafa aafc aaff aana aane acaa acac acae acan acca accc acce accf ace- acea acec acen acfc acfe acne aeac aeaf aean aena afaa afan afca afcc afee affa affc ana- anaa anac anae anan anca ancc ance anec anee anen anfa anna anne caaa caac caaf caan cac- caca cacc cace caec caen cafa cafc cafe caff cana canc cane cann ccaa ccac ccaf ccca cccc cccf ccee ccfa ccfc ccff ccna ccnc ccne ccnf ceac cean cec- ceca cece ceec cef- cefa cefc cefn cen- cena cene cfaa cfac cfae cfca cfcf cfcn cnaa cnac cnfa cnna eaaf eaca eacc eaec eana ecaa ecac ecan ecca eccc ecce ecef ecfa ecfc ecne eeca eeea eeee eefa eefe eefn eena efca efen effa enac enan enca ence enea enee enna ennc enne faaa faac faan faca facc face fafa fafc fafe faff fana fanc fane fcca fccf feaf fean fece feen fefc fefe feff fena fene fenn ffcc ffee ffff fnac naaa naac naan naca nacc nace nacf naea naef nafa nafc nafe naff nan- nana nane nann ncaa ncac ncca nccc nccf nccn ncea ncec ncee ncef ncen ncfc ncfe ncna ncnc neac neaf nean neca necc nece neea neef neen nefa nefe neff nena nene nfaa nfff nnnn