a-be aaaa aaab aaae aaar aaav aaba aabb aaea aaev aage aaoe aaoo aara aare aaro aaru aava abaa abab abae abag abar abau abb- abba abbb abbe abbo abbr abee aber aboa abob aboo abor abou abov abra abro abua abue abug abva aeer aega aer- aera aero aeva ag-o agag agao agar agau agav agba agbo agea agee ager agga agge aggu agob agog agoo agou agra agre agro agua ague agur agva aoba aoeu aora aorb arab arae arag arar arau arba arbe area aree areg areo areu arev arga argb arge argo aroa arob aroe aroo aror arr- arra arre arrg arro arrr arru arua arub arue arug arva arve arvo auaa aube auer auga auge aur- aura aure auro auug auve avab avao avar avea aveo aver aveu avgo avor avou avra avre avro avur avva avvo baaa baar baba babb babe babo babr babu baer baga bage bagg bago bar- bara barb bare barg baro barr baru bau- baug baur bava bave bavu bbau bbbb bbeb bbga bbrg beag bear beau beav beba bebb bebe bebo beeb beeg beer bega begg bego begu beo- beor bera bere berg bero berr beru beur bevo boab boag boar boba bobb bobe bobo bobu boea boee boeo boer boga boge bogg bogo boob booe boog boor bor- bora bore borg boro borr boru boua boue bour bova bove bovo brab brae brag brao brau brav brea breb bree breg breo brer brev broa brob broe brog broo bror brou brrr brue brug bruv buar buba bubb bube bubo bubu buea buer bueu buga buge bugg bugo bur- bura burb bure burg buro burr buru buve eaba eaga eage eara earb eare earo eave ebba ebbo ebbr eber eboe eboo ebor ebro ebru ebur eeea eeee eega eera eerg eero eeva egaa egae egao egar egba egbe egbu egea egee eger eggb egge eggo ego- egor egov egra egre eora eore erau erba erbb erbe ereb erer erev erg- erga ergg ergo erob eroe eroo erra erre erro erua erub erur eruv erve euba euer euge eur- eura eure euro evae evar evea ever evga evoe evoo evra evre gaar gaba gabb gabe gabo gabr gabu gaea gaer gaga gage gagg gago gagu gara garb gare garg garo garr garv gaua gaub gaue gaur gava gave gbag gbbo geab gear geba gebe geer gege gegg gego geo- geog gera gerb gere gero geru geue geva geve gevo gggg goar goba gobe gobo goer goga gogo goog goor gora gorb gore gorg goro gorr gou- goug gour gove grab grae grau grav grbr grea greb gree greg greu grev grob grog groo gror grou grov grrr grua grub grue grug grur grve guaa guag guao guar guba gubb gubu guer guga gugb guge gugg gugu gura gurb gure gurg guro gurr guru guva gvvv o-eo oaau 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 ogou ogra ogre ogro ooaa ooba oobe ooer oooo oora oore orab orae orao orar orav orba orbb orbe orbo orbu ore- orea oreb oreg oreo orer orga orge orgo oro- oroe oror orra orro orub orve orvr ouea ouer ouge our- oura oure ouro ouu- ovar ovee over ovo- ovoo ovra ovre raab raag raba rabb rabe rabo rabu raeg raer raga rage ragg rago ragu raob rara rarb rare raro raua raub raue rava rave rbbb rbbr rea- reae reao rear reau reba rebb rebe rebo rebu reeb reev rega rege rego regr regu reog reou rera rere rerg rero reru reue reuu reva reve revo rgba rgbe roab roag roar rob- roba robb robe robo robu roea roeg roer roev roga roge rogg rogo roob roog roor rora rore roro roru roua roub roue rova rove rovo rrrr ruag ruba rubb rube rubu ruer ruga ruge rugg rura rure ruro ruru ruve ruvu rver uaru uaua ubar ubba ubbe ubbo uber ubra ueba ugab ugao ugar ugeo uggo ugra ugro ugur uguu uor- uore uovo urao urau urba urbe ure- urea urga urge urgu uro- uroa uroo urra urre urur urva urve uuuu uv-a uv-b uvaa uvae uvea uver uvvu vaar vag- vaga vage vagg vara vare varg varr varu vava vbrg vear veau veba veer vega vege veor ver- vera verb vere vero veur veve vevo voar voer voeu voga voge vogu voog voor vor- vora vore voro voru voue vour vrav vrba vreo vugg vugo vurb vurg vver vvob vvog vvvv