a-be aaaa aaab aaad aaae aaam aaar aaba aabb aabd aabm aada aade aaea aaem aama aamb aamd aame aamr aara aard aare aarm abaa abab abad abae abam abar abb- abba abbb abbe abbr abda abed abee aber abma abmb abra adaa adab adad adae adam adar adba adda addd adde addr adea adeb adee adem ader adma admb adme admr adra adre aede aeer aer- aera aerd amaa amad amae amam amar amb- amba ambe ambr amda amed amee amer amm- amma amme amra arab arad arae aram arar arba arbe arda arde ardm area ared aree arem arma armd arme armm arr- arra arre arrr baaa baad baam baar baba babb babe babm babr bada badb badd bade badr baed baer bama bamb bame bamm bar- bara barb bard bare barm barr bbad bbbb bbdd bbeb bd-r bdrm bead beam bear beba bebb bebe beda bede beeb beed beem beer bema beme bera berd bere berm berr bmaa bmdb brab brad brae bram brda brdm brea breb bred bree brem brer brrm brrr daab daad daae daam daar daba dabb dada dade daeb daem daer dama damb dame damm dara darb dard dare darr dbar dddd ddre dead deae dear deba debe deda dedd dede deeb deed deem deer dem- dema demb demd deme der- dera derb dere derm derr dmaa dmab dmae dmba dmea dmrb draa drab drad dram drar drba drda drea dred dree drem drra eaba eada eadb eadd eama eame eara earb eard eare ebam ebba ebbr ebed eber edad edam edar edda edde eddm ede- edea edem eder edma edme edra edrm eede eeea eeee eera emad emae emam emar emba embd embe embr emer emma emme emra emre erad eram erba erbb erbe erda erde ereb ered erem erer erma erme erra erre maaa maad maam maar maba mabe mada madb madd made maee maem maer mama mame mar- mara mard mare marm marr mbam mbba mbda mbdb mbed mddm mdea mdma mdme mdra mead mear mebe meda medb medd mede meed meem meer mema meme memr mer- mera merb merd mere merm mmaa mmab mmar mmda mmdb mmea mmmd mmmm mrad mrbb mrbm mrda mrdd mreb mred mree mrmd raab raad raam raba rabb rabe rada radd rade radm radr raed raer rama ramb rame ramm rara rarb rare rbbb rbbr rdbm rder rdma rea- read reae ream rear reba rebb rebe reda redd rede redr reeb reed reem rema reme rera rerd rere rrad rred rrrr