-ana -ane -ene a-be aaaa aaab aaac aaae aaan aaba aabb aabc aabt aaca aacb aacc aace aacn aact aaea aaec aaen aana aane aata aatc aatt abaa abab abac abae aban abat abb- abba abbb abbe abbt abca abcb abcc abcn abct abec abee aben abet abta ac-t acaa acab acac acae acan acat acba acca accc acce acct ace- acea acec acen acet acne acta actc acte actt aeac aean aebn aecb aect aena aent aeta aetc aetn aett ana- anaa anab anac anae anan anat anba anbb anca ancc ance anct anec anee anen anet anna annb anne annt ant- anta ante antt at-t ataa atab atac atae atan atat atca atcc atea atec atee aten atna atta atte attn baaa baan baat baba babb babe bac- baca bacc bace bacn bact bana banc bane bann bant bata batc bate batn batt bbbb bbeb bbet bcaa bcat bcbc bcca bccc bcec bcet bctc bean beat beba bebb bebe beca beeb been beet bena bene benn bent beta betc bete bett bnet bnta btaa btan btcc btec bten bttb caaa caab caac caan caat caba cabe cac- caca cacc cace caec caen cana canc cane cann cant cat- cata catb catc cate catt cbac cbat cbbc cbca cbcc cbce cbcn cbct cbea cbec cbee cbet cbna cbta cbtc ccaa ccab ccac ccat ccba ccbc ccbn ccca cccb cccc ccee ccna ccnb ccnc ccne cctb cctc cctt ceac cean ceat ceba cec- ceca cece cect ceeb ceec cen- cena cene cent cet- ceta cete cnaa cnac cnbc cnet cnna cnta cntc ctab ctae ctan ctba ctca ctec cten ctne ctta cttn eaba eaca eacc eaec eana eata eate ebac eban ebba ebbc ebcc eben ecaa ecac ecan ecat ecbc ecbe ecca eccb eccc ecce ecct ecne ect- ecta ectc eeca eeea eeee eena eent eeta eetc eete enab enac enan enat enb- enbn enca ence enea enee enna ennc enne ent- ente etan etat etbc etcc etec etee eten etna etne etta ette ettn naaa naab naac naan naat naba nabc nabe naca nacc nace naea nan- nana nanb nane nann nant nata natc nate natt nbaa nbbc nbca nbcc ncaa ncac ncat ncba ncbc ncca nccc nccn ncct ncea ncec ncee ncen ncna ncnc ncta nctc ncte neab neac nean neat neba nebb nebe nebn neca necc nece nect neea neeb neen neet nena nene nent net- neta netb nete nett nnnn nntn ntbc ntcc taa- taan taat taba tabb tabc tabe taca tacc tace tact taec taen tana tane tann tant tata tatb tate tatt tbca tbcb tbcc tbce tbta tcca tccc tcnn tctc teac tean teat teba teca tect teec teen teet tena tenb tenc tene tenn tent teta tete tett tnbc tnca tncc tneb ttab ttbb ttcn tten tttt