a-be aaaa aaab aaad aaae aaar aaba aabb aabd aada aade aaea aage aara aard aare abaa abab abad abae abag abar abb- abba abbb abbe abbr abda abed abee aber abgd abra adaa adab adad adae adag adar adba adda addd adde addr adea adeb adee ader adra adre aede aeer aega aer- aera aerd agad agag agar agba agda agde agea aged agee ager agga agge agra agre arab arad arae arag arar arba arbe arda arde area ared aree areg arga argb arge arr- arra arre arrg arrr baaa baad baar baba babb babe babr bada badb badd bade badr baed baer baga bage bagg bar- bara barb bard bare barg barr bbad bbbb bbdd bbeb bbga bbrg bd-r bead beag bear beba bebb bebe beda bede beeb beed beeg beer bega begg bera berd bere berg berr brab brad brae brag brda brea breb bred bree breg brer brrr daab daad daae daag daar daba dabb dada dade daeb daer daga dage dagg dagr dara darb dard dare darg darr dbag dbar dddd ddre dead deae dear deba debe deda dedd dede deeb deed deeg deer dega dege der- dera derb dere derg derr dgeg dgge draa drab drad drag drar drba drda drea dred dree dreg drge drra eaba eada eadb eadd eaga eage eara earb eard eare ebba ebbr ebed eber edad edag edar edda edde ede- edea eder edge edra eede eeea eeee eega eera eerg egaa egad egae egar egba egbe egea egee eger eggb egge egra egre erad erba erbb erbe erda erde ereb ered erer erg- erga ergg erra erre gaar gaba gabb gabe gabr gada gadd gade gaea gaed gaer gaga gage gagg gara garb gard gare garg garr gbag gbde gddb geab gead gear geba gebe geda gedd gede geed geer gege gegg gera gerb gerd gere gggg grab grad grae grbr grea greb gree greg grrr raab raad raag raba rabb rabe rada radd rade radr raed raeg raer raga rage ragg rara rarb rare rbbb rbbr rder rea- read reae rear reba rebb rebe reda redd rede redr reeb reed rega regd rege regr rera rerd rere rerg rgba rgbe rrad rred rrrr