a-be aaaa aaab aaae aaar aaba aabb aabt aaea aage aara aare aart aata aatt abaa abab abae abag abar abat abb- abba abbb abbe abbr abbt abee aber abet abra abta aeer aega aer- aera aeta aetr aett agag agar agat agba agea agee ager aget agga agge agra agre agta agte agtr arab arae arag arar arat arba arbe area aree areg aret arga argb arge arr- arra arre arrg arrr arrt arta arte artr at-t ataa atab atae atar atat atea atee ater atra atre atta atte attr baaa baar baat baba babb babe babr baer baga bage bagg bagt bar- bara barb bare barg barr bart bata bate batt bbbb bbeb bbet bbga bbrg beag bear beat beba bebb bebe beeb beeg beer beet bega begg bera bere berg berr bert beta bete bett brab brae brag brat brea breb bree breg brer bret brrr btaa btrt bttb eaba eaga eage eara earb eare eart eata eate ebba ebbr eber eeea eeee eega eera eerg eeta eete egaa egae egar egat egba egbe egea egee eger eggb egge egra egre egta egte erat erba erbb erbe ereb erer eret erg- erga ergg erra erre erta etag etat etbr etee eter etra etre etta ette gaar gaba gabb gabe gabr gabt gaea gaer gaga gage gagg gara garb gare garg garr gart gata gate gatr gatt gbag geab gear geat geba gebe geer geet gege gegg gera gerb gere gert geta getb gete getg gett ggbt gggg grab grae grat grbr grea greb gree greg gret grrr gtaa gtbr gtea gtta raab raag raat raba rabb rabe raeg raer raga rage ragg rara rarb rare rata rate ratt rbbb rbbr rea- reae rear reat reba rebb rebe reeb reet rega rege regr regt rera rere rerg rert reta rete retr rett rgba rgbe rgtr rrat rrrr rtee taa- taag taar taat taba tabb tabe taer taga tage tagg tara tarb tare targ tarr tart tata tatb tate tatr tatt tbar tbrb tbta tear teat teba teer teet tega tegg tegt ter- tera tere terr teta tete tetr tett traa trab trae trag trat tre- trea tree treg tret trge trra trte trtr ttab ttbb tter tttt