a-be aaaa aaab aaae aaar aaav aaba aabb aaea aaev aage aaoe aaoo aara aare aaro aava abaa abab abae abag abar abb- abba abbb abbe abbo abbr abee aber aboa abob aboo abor abov abra abro abva aeer aega aer- aera aero aeva ag-o agag agao agar agav agba agbo agea agee ager agga agge agob agog agoo agra agre agro agva aoba aora aorb arab arae arag arar arba arbe area aree areg areo arev arga argb arge argo aroa arob aroe aroo aror arr- arra arre arrg arro arrr arva arve arvo avab avao avar avea aveo aver avgo avor avra avre avro avva avvo baaa baar baba babb babe babo babr baer baga bage bagg bago bar- bara barb bare barg baro barr bava bave bbbb bbeb bbga bbrg beag bear beav beba bebb bebe bebo beeb beeg beer bega begg bego beo- beor bera bere berg bero berr bevo 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 bova bove bovo brab brae brag brao brav brea breb bree breg breo brer brev broa brob broe brog broo bror brrr eaba eaga eage eara earb eare earo eave ebba ebbo ebbr eber eboe eboo ebor ebro eeea eeee eega eera eerg eero eeva egaa egae egao egar egba egbe egea egee eger eggb egge eggo ego- egor egov egra egre eora eore erba erbb erbe ereb erer erev erg- erga ergg ergo erob eroe eroo erra erre erro erve evae evar evea ever evga evoe evoo evra evre gaar gaba gabb gabe gabo gabr gaea gaer gaga gage gagg gago gara garb gare garg garo garr garv gava gave gbag gbbo geab gear geba gebe geer gege gegg gego geo- geog gera gerb gere gero geva geve gevo gggg goar goba gobe gobo goer goga gogo goog goor gora gorb gore gorg goro gorr gove grab grae grav grbr grea greb gree greg grev grob grog groo gror grov grrr grve gvvv 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 orav orba orbb orbe orbo ore- orea oreb oreg oreo orer orga orge orgo oro- oroe oror orra orro orve orvr ovar ovee over ovo- ovoo ovra ovre raab raag raba rabb rabe rabo raeg raer raga rage ragg rago raob rara rarb rare raro rava rave rbbb rbbr rea- reae reao rear reba rebb rebe rebo reeb reev rega rege rego regr reog rera rere rerg rero reva reve revo rgba rgbe roab roag roar rob- roba robb robe robo roea roeg roer roev roga roge rogg rogo roob roog roor rora rore roro rova rove rovo rrrr rver vaar vag- vaga vage vagg vara vare varg varr vava vbrg vear veba veer vega vege veor ver- vera verb vere vero veve vevo voar voer voga voge voog voor vor- vora vore voro vrav vrba vreo vver vvob vvog vvvv