a-be aaaa aaab aaae aaap aaar aaba aabb aabp aaea aaep aage aapa aara aare aarp abaa abab abae abag abap abar abb- abba abbb abbe abbr abee aber abpa abpp abpr abra aeap aeer aega aer- aera agag agap agar agba agea agee agep ager agga agge agra agre agrp apap apar apba apbg apbr apea apeg apep aper apga appa appr apra apre arab arae arag arap arar arba arbe area aree areg arep arga argb arge arpa arpe arr- arra arre arrg arrr baaa baar baba babb babe babr baer baga bage bagg bapa bape bapp bar- bara barb bare barg barr bbbb bbeb bbga bbpr bbrg beag beap bear beba bebb bebe beeb beeg beep beer bega begg bera bere berg berr bpea brab brae brag brea breb bree breg brep brer brrr eaba eaga eage eapp eara earb eare earp ebba ebbr eber eeea eeee eega eera eerg egaa egae egar egba egbe egea egee eger eggb egge eggp egpa egpb egpe egra egre epaa epee eper eppa eppp epra eprb eprp erap erba erbb erbe ereb erer erg- erga ergg erpa erpe erra erre gaap gaar gaba gabb gabe gabp gabr gaea gaer gaga gage gagg gapa gape gapp gara garb gare garg garp garr gbag gbap geab gear geba gebe geep geer gege gegg gepa gepe gera gerb gere gggg gpaa gper gpgp gpra gprp grab grae grap grbr grea greb gree greg grep grrr paag paap paar paba paea paep paer paga pagb page papa papb pape papg papp papr par- para pare parg parp parr pbar pbpa peab peag peap pear peba peep peer pega pegg pepa pepe per- pera pere perg perp perr pgaa pger ppap ppar pper ppga pppa pppp prae prag prar pre- preb pree preg prep raab raag raba rabb rabe raeg raep raer raga rage ragg rapa rape rapp rara rarb rare rbbb rbbr rea- reae reap rear reba rebb rebe reeb reep rega rege regr repe repp repr rera rere rerg rgba rgbe rpga rrrr