a-be aaaa aaab aaae aaar aaba aabb aaea aage aaoe aaoo aara aare aaro abaa abab abae abag abar abb- abba abbb abbe abbo abbr abee aber aboa abob aboo abor abra abro aeer aega aer- aera aero ag-o agag agao agar agba agbo agea agee ager agga agge agob agog agoo agra agre agro aoba aora aorb arab arae arag arar arba arbe area aree areg areo arga argb arge argo aroa arob aroe aroo aror arr- arra arre arrg arro arrr baaa baar baba babb babe babo babr baer baga bage bagg bago bar- bara barb bare barg baro barr bbbb bbeb bbga bbrg beag bear beba bebb bebe bebo beeb beeg beer bega begg bego beo- beor bera bere berg bero berr boab boag boar boba bobb bobe bobo boea boee boeo boer boga boge bogg bogo boob booe boog boor bor- bora bore borg boro borr brab brae brag brao brea breb bree breg breo brer broa brob broe brog broo bror brrr eaba eaga eage eara earb eare earo ebba ebbo ebbr eber eboe eboo ebor ebro eeea eeee eega eera eerg eero egaa egae egao egar egba egbe egea egee eger eggb egge eggo ego- egor egra egre eora eore erba erbb erbe ereb erer erg- erga ergg ergo erob eroe eroo erra erre erro gaar gaba gabb gabe gabo gabr gaea gaer gaga gage gagg gago gara garb gare garg garo garr gbag gbbo geab gear geba gebe geer gege gegg gego geo- geog gera gerb gere gero gggg goar goba gobe gobo goer goga gogo goog goor gora gorb gore gorg goro gorr grab grae grbr grea greb gree greg grob grog groo gror grrr o-eo oaer oara oare obba obbo obea ober oboe obor obra obre obro oegb oera oere ogae ogar ogb ogba ogbe ogea ogee oger ogge ogoa ogog ogra ogre ogro ooaa ooba oobe ooer oooo oora oore orab orae orao orar orba orbb orbe orbo ore- orea oreb oreg oreo orer orga orge orgo oro- oroe oror orra orro raab raag raba rabb rabe rabo raeg raer raga rage ragg rago raob rara rarb rare raro rbbb rbbr rea- reae reao rear reba rebb rebe rebo reeb rega rege rego regr reog rera rere rerg rero rgba rgbe roab roag roar rob- roba robb robe robo roea roeg roer roga roge rogg rogo roob roog roor rora rore roro rrrr